# Opinion polling for the 2021 Japanese general election

In the run up to the 2021 Japanese general election, various organisations carried out opinion polling to gauge voting intention. Results of such polls are displayed in this article. The date range for these opinion polls is from the previous general election, held on 22 October 2017 to 31 October 2021.

## Graphical summary

The charts below depict party identification polling for the next Japanese general election using a 15-poll moving average.

## Party identification
### 2021

| Fieldwork date | Polling firm | LDP | CDP | Kōmeitō | JCP | Ishin | DPFP | SDP | Reiwa | N-Koku | Others | No party | Und./ no ans. | Lead |
| 31 Oct 2021 | 2021 general election | 34.7 | 20.0 | 12.4 | 7.3 | 14.0 | 4.5 | 1.8 | 3.9 | 1.4 | 1.7 | — | — | 14.7 |
| 23–24 Oct | go2senkyo | 32.2 | 14.8 | 6.1 | 4.9 | 6.9 | 1.1 | 1.0 | 0.6 | 0.3 | | 32.2 | | Tied |
| 22-24 Oct | NHK | 38.6 | 8.0 | 4.3 | 2.9 | 3.5 | 0.8 | 0.7 | 0.8 | 0.2 | 0.2 | 31.4 | 8.5 | 7.2 |
| 19–20 Oct | Mainichi Shimbun | 41 | 14 | 4 | 6 | 6 | 1 | 1 | 2 | 1 | 1 | 23 | | 18 |
| 19–20 Oct | Asahi Shimbun | 34 | 7 | 4 | 3 | 3 | 1 | 0 | 0 | 0 | 1 | 34 | 13 | Tied |
| 16–17 Oct | Kyodo News | 49.1 | 10.4 | 3.1 | 4.7 | 4.3 | | | | | | 18.8 | | 30.3 |
| 16–17 Oct | go2senkyo | 31.6 | 11.8 | 4.7 | 5.6 | 4.0 | 1.0 | 1.2 | 0.3 | 0.3 | | 39.4 | | 7.8 |
| 16–17 Oct | ANN | 49.9 | 12.1 | 4.1 | 4.4 | 2.3 | 1.2 | 0.6 | 0.6 | 0.4 | 0.8 | 23.6 | 23.6 | 26.3 |
| 15–17 Oct | NHK | 38.8 | 6.6 | 3.9 | 2.8 | 2.3 | 1.0 | 0.6 | 0.6 | 0.1 | 0.2 | 36.2 | 6.9 | 2.6 |
| 14–15 Oct | Yomiuri Shimbun | 40 | 6 | 3 | 3 | 3 | 1 | 1 | 0 | | 0 | 38 | 5 | 2 |
| 9–10 Oct | Green Ship Archived 2021-10-17 at the Wayback Machine | 42.92 | 13.73 | 4.82 | 5.62 | 4.96 | | | | | | 23.23 | | 19.7 |
| 9–10 Oct | FNN-Sankei | 45.3 | 6.4 | 2.4 | 2.5 | 2.6 | 0.5 | 0.5 | 0.3 | 0.1 | 0.2 | 37.1 | 2.1 | 8.2 |
| 9–10 Oct | JNN | 41.5 | 5.7 | 3.1 | 2.3 | 2.5 | 0.7 | 0.5 | 0.3 | 0 | 0.4 | 38.6 | 4.4 | 2.9 |
| 8–10 Oct | NHK | 41.2 | 6.1 | 4.1 | 2.7 | 1.8 | 0.7 | 0.6 | 0.2 | 0.1 | 0.2 | 36.1 | 6.2 | 5.1 |
| 4–5 Oct | Asahi Shimbun | 37 | 5 | 3 | 3 | 2 | 0 | 0 | 0 | 0 | 0 | 40 | 10 | 3 |
| 4–5 Oct | Yomiuri Shimbun | 43 | 7 | 3 | 3 | 2 | 1 | 0 | 0 | | 0 | 36 | 4 | 7 |
| 4–5 Oct | Nikkei-TV Tokyo | 51 | 8 | 4 | 5 | 3 | 1 | | | | | 27 | | 24 |
| 4 Oct | Fumio Kishida assumes office as the Prime Minister and President of the LDP. | Fumio Kishida assumes office as the Prime Minister and President of the LDP. | Fumio Kishida assumes office as the Prime Minister and President of the LDP. | Fumio Kishida assumes office as the Prime Minister and President of the LDP. | Fumio Kishida assumes office as the Prime Minister and President of the LDP. | Fumio Kishida assumes office as the Prime Minister and President of the LDP. | Fumio Kishida assumes office as the Prime Minister and President of the LDP. | Fumio Kishida assumes office as the Prime Minister and President of the LDP. | Fumio Kishida assumes office as the Prime Minister and President of the LDP. | Fumio Kishida assumes office as the Prime Minister and President of the LDP. | Fumio Kishida assumes office as the Prime Minister and President of the LDP. | Fumio Kishida assumes office as the Prime Minister and President of the LDP. | Fumio Kishida assumes office as the Prime Minister and President of the LDP. | Fumio Kishida assumes office as the Prime Minister and President of the LDP. |
| 23–25 Sep | Nikkei | 47 | 8 | 3 | 3 | 3 | 1 | | 1 | | | 30 | 4 | 17 |
| 18–19 Sep | ANN | 49.4 | 9.9 | 4.2 | 4.1 | 3.1 | 1.2 | 0.3 | 0.4 | 0.0 | 0.7 | 26.7 | 26.7 | 22.7 |
| 18–19 Sep | FNN-Sankei | 43.5 | 6.9 | 3.2 | 2.1 | 1.6 | 0.3 | 0.3 | 0.7 | 0.0 | 0.4 | 34.5 | 6.5 | 9 |
| 18 Sep | Mainichi Shimbun | 37 | 10 | 4 | 4 | 5 | 1 | | 2 | | | 34 | | 3 |
| 10–13 Sep | Jiji Press Archived 2021-10-07 at the Wayback Machine | 26.5 | 3.0 | 5.0 | 2.2 | 1.7 | 0 | 0.2 | 0.2 | 0.2 | | 59.0 | | 32.5 |
| 11–12 Sep | Asahi Shimbun | 37 | 5 | 3 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 43 | 8 | 6 |
| 10–12 Sep | NHK | 37.6 | 5.5 | 3.6 | 2.9 | 1.1 | 0.2 | 0.6 | 0.4 | 0.2 | 0.3 | 40.2 | 7.4 | 2.6 |
| 9-11 Sep | Nikkei | 48 | 8 | 2 | 3 | 3 | 1 | 0 | 1 | 0 | | 31 | 3 | 17 |
| 4–5 Sep | Yomiuri Shimbun | 36 | 7 | 3 | 3 | 2 | 0 | 0 | 0 | | | 43 | 5 | 7 |
| 3 Sep | Yoshihide Suga announces he will not seek re-election as President of the LDP. | Yoshihide Suga announces he will not seek re-election as President of the LDP. | Yoshihide Suga announces he will not seek re-election as President of the LDP. | Yoshihide Suga announces he will not seek re-election as President of the LDP. | Yoshihide Suga announces he will not seek re-election as President of the LDP. | Yoshihide Suga announces he will not seek re-election as President of the LDP. | Yoshihide Suga announces he will not seek re-election as President of the LDP. | Yoshihide Suga announces he will not seek re-election as President of the LDP. | Yoshihide Suga announces he will not seek re-election as President of the LDP. | Yoshihide Suga announces he will not seek re-election as President of the LDP. | Yoshihide Suga announces he will not seek re-election as President of the LDP. | Yoshihide Suga announces he will not seek re-election as President of the LDP. | Yoshihide Suga announces he will not seek re-election as President of the LDP. | Yoshihide Suga announces he will not seek re-election as President of the LDP. |
| 28 Aug | Mainichi Shimbun | 26 | 10 | 3 | 5 | 8 | 1 | | 2 | | | 42 | | 16 |
| 21–22 Aug | FNN-Sankei | 35.6 | 6.6 | 3.5 | 2.4 | 3.0 | 0.6 | 0.4 | 0.7 | 0.3 | 0.2 | 44.6 | 4.2 | 9.0 |
| 21–22 Aug | ANN | 46.6 | 8.1 | 2.9 | 4.1 | 2.6 | 0.5 | 0.5 | 0.2 | 0.1 | 0.8 | 33.6 | 33.6 | 13.0 |
| 14–15 Aug | go2senkyo | 29.1 | 11.1 | 4.1 | 5.6 | 3.5 | 0.5 | 0.6 | 0.9 | 0.0 | | 44.5 | | 15.4 |
| 7–9 Aug | Yomiuri-NNN | 32 | 5 | 3 | 3 | 2 | 0 | 0 | 0 | | 0 | 49 | | 17 |
| 7–9 Aug | NHK | 33.4 | 6.4 | 3.7 | 3.3 | 1.7 | 0.8 | 0.5 | 0.2 | 0.2 | 0.3 | 42.8 | 6.4 | 9.4 |
| 6–9 Aug | Jiji Press Archived 2021-08-14 at the Wayback Machine | 23.7 | 3.9 | 4.5 | 1.3 | 2.0 | 0.3 | 0.2 | 0.2 | 0.0 | | 61.4 | | 37.7 |
| 7–8 Aug | Asahi Shimbun | 32 | 6 | 2 | 3 | 1 | 1 | 0 | 0 | 0 | 0 | 47 | 8 | 15 |
| 7–8 Aug | JNN | 32.4 | 5.4 | 3.5 | 2.1 | 2.8 | 0.6 | 0.2 | 0.6 | 0 | 0.2 | 48.7 | 3.5 | 16.3 |
| 23–25 Jul | Nikkei | 38 | 9 | 4 | 4 | 4 | 1 | | | | | 35 | 3 | 3 |
| 17–18 Jul | ANN | 42.3 | 8.8 | 3.9 | 2.6 | 2.7 | 0.5 | 0.4 | 0.3 | 0.2 | 0.8 | 37.5 | 37.5 | 4.8 |
| 17–18 Jul | FNN-Sankei | 36.3 | 8.0 | 2.4 | 3.7 | 2.2 | 0.7 | 0.7 | 0.3 | 0.0 | 0.4 | 41.0 | 4.2 | 4.7 |
| 17 Jul | Mainichi Shimbun | 28 | 10 | 4 | 7 | 6 | 1 | 1 | 1 | 0 | 2 | 39 | | 11 |
| 9–12 Jul | Jiji Press Archived 2021-07-26 at the Wayback Machine | 21.4 | 4.5 | 2.5 | 1.8 | 2.0 | 0.5 | 0.2 | 0.3 | 0.1 | | 63.9 | | 42.5 |
| 10–11 Jul | go2senkyo | 28.6 | 12.0 | 4.5 | 7.1 | 3.2 | 1.1 | 1.1 | 0.4 | 0.1 | | 41.8 | | 13.2 |
| 9-11 Jul | Yomiuri-NNN | 36 | 5 | 4 | 3 | 2 | 1 | 0 | 0 | 0 | 0 | 43 | 5 | 7 |
| 9-11 Jul | NHK | 34.9 | 6.0 | 3.3 | 3.3 | 2.1 | 0.8 | 0.3 | 0.2 | | 0.8 | 41.9 | 6.3 | 7.0 |
| 3–4 Jul | JNN | 33.6 | 6.1 | 3.5 | 3.4 | 2.1 | 0.6 | 0.4 | 0.4 | 0 | 0.3 | 46.1 | 3.6 | 12.5 |
| 25–27 Jun | Nikkei | 43 | 8 | 3 | 4 | 4 | 1 | 1 | 0 | 0 | — | 31 | 4 | 12 |
| 19–20 Jun | ANN | 41.8 | 8.4 | 3.3 | 3.6 | 3.0 | 1.5 | 0.4 | 1.0 | 0.0 | 1.0 | 36.0 | 36.0 | 5.8 |
| 19–20 Jun | FNN-Sankei | 37.0 | 8.2 | 2.5 | 2.0 | 2.8 | 0.9 | 0.5 | 0.0 | 0.0 | 0.2 | 43.2 | 2.5 | 6.2 |
| 19–20 Jun | Asahi Shimbun | 31 | 6 | 4 | 3 | 2 | 1 | 0 | 0 | 0 | 0 | 45 | 8 | 14 |
| 19 Jun | Mainichi Shimbun | 30 | 10 | 4 | 6 | 6 | 1 | — | 2 | | | 40 | — | 10 |
| 11–14 Jun | Jiji Press Archived 2021-07-11 at the Wayback Machine | 22.8 | 2.9 | 3.7 | 1.7 | 1.2 | 0.5 | 0.2 | 0.2 | 0.1 | | 63.2 | — | 40.4 |
| 12–13 Jun | go2senkyo | 25.4 | 13.9 | 4.8 | 5.9 | 2.9 | 0.7 | 0.9 | 0.6 | 0.1 | | 44.7 | — | 19.3 |
| 11–13 Jun | NHK | 35.8 | 6.4 | 3.5 | 2.8 | 2.1 | 0.5 | 0.3 | 0.1 | 0.5 | 0 | 40.6 | 7.4 | 4.8 |
| 5–6 Jun | JNN | 34.3 | 5.8 | 3.5 | 2.3 | 2.7 | 0.5 | 0.2 | 0.7 | 0.2 | 0.3 | 43.9 | 5.5 | 10.4 |
| 4–6 Jun | Yomiuri-NNN | 33 | 5 | 3 | 3 | 2 | 0 | 1 | 0 | | 0 | 48 | 4 | 15 |
| 28–30 May | Nikkei | 42 | 8 | 4 | 3 | 4 | 0 | 0 | 1 | 0 | — | 33 | 5 | 9 |
| 15–16 May | go2senkyo | 26.2 | 14.3 | 4.1 | 7.3 | 3.6 | 1.2 | 0.7 | 1.4 | 0.4 | — | 40.7 | — | 14.5 |
| 15–16 May | FNN-Sankei | 35.3 | 7.7 | 3.1 | 1.9 | 3 | 0.8 | 0.3 | 0.3 | 0.1 | — | 44.9 | 2.2 | 9.6 |
| 15–16 May | ANN | 44.9 | 12.2 | 2.6 | 3.7 | 2.8 | 1.0 | 0.6 | 0.2 | 0.5 | 1.2 | 30.3 | 30.3 | 14.6 |
| 15–16 May | Asahi Shimbun | 30 | 7 | 3 | 2 | 2 | 1 | 0 | 0 | 0 | 0 | 47 | 8 | 17 |
| 15–16 May | Kyodo News | 41.9 | 8.6 | 4.5 | 3.4 | 4.6 | 1.2 | 0.4 | 1 | 0.7 | — | 32.1 | — | 9.8 |
| 8–9 May | JNN | 37.2 | 6.0 | 3.8 | 2.2 | 2.0 | 1.1 | 0 | 0.1 | 0.1 | 1.0 | 42.4 | 4.3 | 5.2 |
| 7–10 May | Jiji Press Archived 2021-05-20 at the Wayback Machine | 21.4 | 4.4 | 2.6 | 1.5 | 1.9 | 0.5 | 0.2 | 0.2 | 0.2 | — | 64.8 | — | 43.4 |
| 7–9 May | Yomiuri-NNN | 37 | 7 | 2 | 2 | 2 | 1 | 0 | 0 | | 1 | 44 | 4 | 7 |
| 7–9 May | NHK | 33.7 | 5.8 | 2.9 | 3.1 | 1.6 | 0.6 | 0.2 | 0.3 | 0.2 | 0.5 | 43.8 | 7.4 | 10.1 |
| 23–25 Apr | Nikkei | 47 | 9 | 3 | 3 | 4 | 1 | 1 | 1 | 0 | 0 | 29 | 3 | 18 |
| 18 Apr | Mainichi Shimbun | 31 | 11 | 4 | 4 | 8 | 1 | 0 | 2 | 1 | 1 | 36 | — | 5 |
| 17–18 Apr | FNN-Sankei | 39.2 | 5.5 | 3.2 | 2.9 | 3.3 | 0.7 | 0.2 | 0.4 | 0.2 | 0.2 | 38.7 | 4.2 | 0.5 |
| 17–18 Apr | ANN | 45.1 | 9.0 | 3.4 | 3.4 | 3.0 | 0.5 | 1.0 | 1 | 0.1 | 1.6 | 32.4 | — | 12.7 |
| 9–12 Apr | Jiji Press Archived 2021-05-20 at the Wayback Machine | 22.5 | 4.2 | 3.8 | 1.8 | 1.6 | 0.3 | 0.2 | 0.3 | 0 | — | 62.2 | — | 39.7 |
| 3 Mar – 12 Apr | Asahi Shimbun | 38 | 8 | 4 | 2 | 5 | 1 | 0 | 1 | 0 | — | 41 | 0 | 3 |
| 10–11 Apr | Asahi Shimbun | 35 | 6 | 2 | 3 | 2 | 1 | 0 | 0 | 0 | 0 | 43 | 8 | 8 |
| 9-11 Apr | NHK | 37.4 | 6.3 | 4.1 | 2.7 | 1.5 | 0.7 | 0.3 | 0.3 | — | 0.7 | 39.7 | 6.4 | 2.3 |
| 3–4 Apr | JNN | 35.6 | 4.9 | 3.1 | 2.6 | 1.4 | 0.5 | 0.3 | 0.5 | 0.1 | 0.5 | 47.0 | 3.6 | 11.4 |
| 2–4 Apr | Yomiuri-NNN | 39 | 5 | 3 | 2 | 2 | 0 | 0 | 0 | 0 | 1 | 43 | 4 | 4 |
| 26–28 Mar | Nikkei | 43 | 11 | 4 | 4 | 4 | 1 | 0 | 0 | 0 | 0 | 29 | 4 | 14 |
| 20–21 Mar | Asahi Shimbun | 33 | 5 | 3 | 2 | 2 | 1 | 1 | 0 | 0 | 0 | 46 | 7 | 13 |
| 20–21 Mar | ANN | 43.7 | 10.5 | 3.9 | 4.5 | 2.2 | 1.2 | 0.3 | 0.1 | 0.4 | 1.3 | 31.9 | 31.9 | 11.8 |
| 13–14 Mar | FNN-Sankei | 40.1 | 6.5 | 4.4 | 2.1 | 2.5 | 1.1 | 0.2 | 0.2 | 0.3 | 0.9 | 39.9 | 3 | 0.2 |
| 6–7 Mar | JNN | 38.3 | 4.8 | 2.0 | 2.4 | 3.1 | 0.9 | 0.3 | 0.5 | 0.4 | 0.3 | 41.4 | 5.5 | 3.1 |
| 5–8 Mar | Jiji Press Archived 2021-05-20 at the Wayback Machine | 23 | 4.8 | 3.5 | 1.7 | 2.4 | 0.4 | 0.2 | 0.2 | 0.1 | | 62.4 | — | 39.4 |
| 5–7 Mar | NHK | 35.6 | 4.5 | 3.2 | 3.1 | 2.1 | 0.8 | 0.3 | 0.2 | 0.2 | 0.2 | 40.1 | 9.5 | 4.5 |
| 5–7 Mar | Yomiuri-NNN | 40 | 6 | 3 | 2 | 3 | 0 | 1 | 1 | — | 0 | 42 | 3 | 2 |
| 26–28 Feb | Nikkei | 45 | 11 | 2 | 5 | 3 | 1 | | 1 | | | 27 | 4 | 18 |
| 20–21 Feb | FNN-Sankei | 38.6 | 8 | 2.6 | 2.3 | 3.9 | 1 | 0.1 | 0.6 | 0.2 | 0.8 | 39.7 | 2.1 | 1.1 |
| 13–14 Feb | Asahi Shimbun | 33 | 7 | 4 | 3 | 2 | 1 | — | 0 | 0 | 0 | 44 | 6 | 11 |
| 13–14 Feb | ANN | 45.2 | 11.8 | 3.5 | 2.5 | 2.9 | 0.6 | 0.6 | 0.2 | 0 | 1.4 | 31.3 | 31.3 | 13.9 |
| 6–7 Feb | JNN | 36.7 | 6.2 | 3.7 | 2.4 | 3.1 | 0.7 | 0.3 | 0.4 | 0.3 | 0.6 | 42.3 | 3.2 | 5.6 |
| 5–7 Feb | NHK | 35.1 | 6.8 | 3 | 3 | 2.6 | 0.9 | 0.6 | 0.4 | 0.2 | — | 42.3 | 5.1 | 7.2 |
| 5–7 Feb | Yomiuri-NNN | 37 | 5 | 4 | 2 | 1 | 1 | 1 | 0 | 0 | 0 | 42 | 5 | 5 |
| 4–7 Feb | Jiji Press Archived 2021-05-17 at the Wayback Machine | 25.5 | 3.8 | 2.4 | 1.6 | 2.1 | 0.6 | 0.4 | 0.3 | 0.2 | — | 61.2 | — | 35.7 |
| 29–31 Jan | Nikkei | 44 | 9 | 5 | 5 | 3 | 1 | | | | | 30 | 2 | 14 |
| 23–24 Jan | FNN-Sankei | 39.1 | 8.9 | 3.6 | 2.5 | 4 | 0.9 | 0.3 | 0.9 | 0.5 | 0.4 | 38.5 | 0.3 | 0.6 |
| 16–17 Jan | ANN | 45.7 | 7.9 | 4.4 | 3.1 | 2.5 | 1.7 | 0.7 | 0.3 | 0.4 | 4.1 | 29.2 | 29.2 | 16.5 |
| 15–17 Jan | Yomiuri-NNN | 37 | 5 | 3 | 2 | 1 | 1 | 0 | 0 | 0 | 1 | 46 | 3 | 9 |
| 9-11 Jan | NHK | 37.8 | 6.6 | 3 | 2.9 | 1.1 | 0.5 | 0.5 | 0.5 | 0.2 | 0.5 | 40.5 | 6 | 2.7 |
| 8–11 Jan | Jiji Press Archived 2021-02-13 at the Wayback Machine | 23.7 | 3.1 | 3.9 | 1.7 | 1.6 | 0.5 | 0.8 | 0.2 | 0.1 | — | 62.8 | — | 39.1 |
| 9–10 Jan | JNN | 34.2 | 5.9 | 3.2 | 2.4 | 2.0 | 0.8 | 0.2 | 0.3 | 0.6 | 1.0 | 46.2 | 3.3 | 12.0 |
| 9–10 Jan | Kyodo News | 41.2 | 7.8 | 3.9 | 3.3 | 4.3 | 0.8 | 0.1 | 1.1 | 0.4 | — | 34.6 | — | 6.6 |
| 22 Oct 2017 | 2017 general election | 33.3 | 19.9 | 12.5 | 7.9 | 6.1 | 17.4 | 0.8 | — | — | 1.3 | — | — | 13.4 |

### 2020

| Fieldwork date | Polling firm | LDP | CDP | Kōmeitō | JCP | Ishin | DPFP | SDP | Reiwa | N-Koku | Others | No party | Und./ no ans. | Lead |
| 26–27 Dec | Yomiuri-NNN | 38 | 3 | 3 | 2 | 2 | 1 | 0 | 0 | 0 | 1 | 47 | 2 | 9 |
| 25–27 Dec | Nikkei | 42 | 9 | 3 | 3 | 4 | 1 | 1 | | | | 33 | 3 | 9 |
| 19–20 Dec | ANN | 47 | 9.3 | 3.9 | 3.9 | 2.6 | 1.7 | 0.5 | 0.3 | 0 | 1 | 29.8 | 29.8 | 17.2 |
| 11–13 Dec | NHK | 38.2 | 5.1 | 3.4 | 2.2 | 2.4 | 0.6 | 0.4 | 0.3 | 0.2 | 0.2 | 39.4 | 7.6 | 1.2 |
| 4–7 Dec | Jiji Press Archived 2021-05-20 at the Wayback Machine | 24.7 | 4.1 | 3.3 | 1.5 | 1.8 | 0.9 | 0.4 | 0.6 | 0.2 | — | 60.3 | | 35.6 |
| 5–6 Dec | JNN | 38.0 | 5.0 | 3.4 | 2.4 | 2.0 | 0.4 | 0.2 | 0.2 | 0.1 | 0.5 | 45.9 | 1.8 | 7.9 |
| 5–6 Dec | Kyodo News | 41.5 | 7.2 | 3.7 | 3.1 | 5.6 | 1.7 | 1 | 1.3 | 0.4 | — | 32.5 | | 9 |
| 4–6 Dec | Yomiuri-NNN | 42 | 5 | 3 | 1 | 2 | 1 | 0 | 0 | 0 | 1 | 40 | 5 | 2 |
| 27–29 Nov | Nikkei | 49 | 6 | 3 | 3 | 4 | 1 | 1 | 1 | | | 30 | 2 | 19 |
| 15 Oct – 17 Nov | Yomiuri-Waseda | 40 | 6 | 4 | 2 | 5 | 0 | 0 | 1 | 1 | 0 | 40 | 2 | Tied |
| 14–15 Nov | Asahi Shimbun | 39 | 6 | 4 | 2 | 2 | 0 | 1 | 0 | 0 | 0 | 40 | 6 | 1 |
| 14–15 Nov | ANN | 48.2 | 9.2 | 3.3 | 3.3 | 3.7 | 0.7 | 0.8 | 0.4 | 0.3 | 1.4 | 28.7 | 28.7 | 19.5 |
| 6–9 Nov | Jiji Press Archived 2020-11-18 at the Wayback Machine | 25.7 | 4.1 | 2.6 | 1.5 | 1.7 | 0.2 | 0.3 | 0.3 | 0.2 | — | 61 | | 35.3 |
| 7–8 Nov | JNN | 40.4 | 4.5 | 2.9 | 1.8 | 2.7 | 1.4 | 0.2 | 0.4 | 0.3 | 0.5 | 41.3 | 3.5 | 0.9 |
| 6–8 Nov | NHK | 36.8 | 4.9 | 3.6 | 2.3 | 1.5 | 0.8 | 0.5 | 0.5 | 0.1 | 0.1 | 40 | 9 | 3.2 |
| 6–8 Nov | Yomiuri-NNN | 48 | 4 | 3 | 2 | 3 | 1 | 0 | 0 | — | 1 | 36 | 2 | 12 |
| 23–25 Oct | Nikkei | 45 | 8 | 4 | 4 | 3 | 1 | 0 | 1 | | | 30 | 3 | 15 |
| 17–18 Oct | Asahi Shimbun | 39 | 6 | 3 | 3 | 2 | 0 | 0 | 0 | 0 | 0 | 41 | 6 | 2 |
| 17–18 Oct | ANN | 49.4 | 9 | 4.2 | 3.9 | 3.6 | 0.8 | 0.3 | 0.1 | 0.1 | 0.9 | 27.7 | 27.7 | 21.7 |
| 16–18 Oct | Yomiuri-NNN | 42 | 4 | 3 | 3 | 2 | 1 | 0 | 1 | — | 1 | 41 | 3 | 1 |
| 9–12 Oct | Jiji Press Archived 2020-11-03 at the Wayback Machine | 26.4 | 3.8 | 3 | 1.9 | 1 | 0.5 | 0.3 | 0.3 | 0.1 | — | 59.2 | | 32.8 |
| 9-11 Oct | NHK | 37 | 5.8 | 3.2 | 2.6 | 1.6 | 0.5 | 0.4 | | — | 0.1 | 40.3 | 8.5 | 3.3 |
| 3–4 Oct | JNN | 40.7 | 4.5 | 4.0 | 2.4 | 1.9 | 0.4 | 0.4 | 0.3 | 0.0 | 0.3 | 40.8 | 4.4 | 0.1 |
| 21–22 Sep | NHK | 40.8 | 6.2 | 3 | 1.7 | 1.1 | 0.1 | 0.4 | 0.2 | 0.1 | 0.1 | 40 | 6.4 | 0.8 |
| 19–20 Sep | Yomiuri-NNN | 47 | 4 | 3 | 2 | 2 | 1 | 0 | 0 | — | 0 | 37 | 3 | 10 |
| 19–20 Sep | ANN | 53.9 | 9.1 | 3.5 | 3.0 | 2.5 | 0.7 | 0.3 | 0.1 | 0.1 | — | 25.5 | 25.5 | 28.4 |
| 16–17 Sep | Nikkei | 52 | 7 | 4 | 3 | 3 | 1 | 1 | 1 | | | 24 | 4 | 28 |
| 16–17 Sep | Asahi Shimbun | 41 | 6 | 3 | 2 | 2 | 1 | 0 | 0 | 0 | 0 | 38 | 38 | 3 |
| 16 Sep | Yoshihide Suga assumes office as the Prime Minister and President of the LDP. | Yoshihide Suga assumes office as the Prime Minister and President of the LDP. | Yoshihide Suga assumes office as the Prime Minister and President of the LDP. | Yoshihide Suga assumes office as the Prime Minister and President of the LDP. | Yoshihide Suga assumes office as the Prime Minister and President of the LDP. | Yoshihide Suga assumes office as the Prime Minister and President of the LDP. | Yoshihide Suga assumes office as the Prime Minister and President of the LDP. | Yoshihide Suga assumes office as the Prime Minister and President of the LDP. | Yoshihide Suga assumes office as the Prime Minister and President of the LDP. | Yoshihide Suga assumes office as the Prime Minister and President of the LDP. | Yoshihide Suga assumes office as the Prime Minister and President of the LDP. | Yoshihide Suga assumes office as the Prime Minister and President of the LDP. | Yoshihide Suga assumes office as the Prime Minister and President of the LDP. | Yoshihide Suga assumes office as the Prime Minister and President of the LDP. |
| 15 Sep | The Constitutional Democratic Party merges with the majority of the Democratic Party For the People as well as some independents. | The Constitutional Democratic Party merges with the majority of the Democratic Party For the People as well as some independents. | The Constitutional Democratic Party merges with the majority of the Democratic Party For the People as well as some independents. | The Constitutional Democratic Party merges with the majority of the Democratic Party For the People as well as some independents. | The Constitutional Democratic Party merges with the majority of the Democratic Party For the People as well as some independents. | The Constitutional Democratic Party merges with the majority of the Democratic Party For the People as well as some independents. | The Constitutional Democratic Party merges with the majority of the Democratic Party For the People as well as some independents. | The Constitutional Democratic Party merges with the majority of the Democratic Party For the People as well as some independents. | The Constitutional Democratic Party merges with the majority of the Democratic Party For the People as well as some independents. | The Constitutional Democratic Party merges with the majority of the Democratic Party For the People as well as some independents. | The Constitutional Democratic Party merges with the majority of the Democratic Party For the People as well as some independents. | The Constitutional Democratic Party merges with the majority of the Democratic Party For the People as well as some independents. | The Constitutional Democratic Party merges with the majority of the Democratic Party For the People as well as some independents. | The Constitutional Democratic Party merges with the majority of the Democratic Party For the People as well as some independents. |
| 5–6 Sep | JNN | 43.2 | 3.5 | 1.1 | 3.2 | 2.2 | 2.3 | 0.3 | 0.3 | 0.1 | 0.6 | 39.5 | 3.7 | 3.7 |
| 2–3 Sep | Mainichi and JNN | 40 | 3 | 3 | 3 | 3 | 1 | 0 | 0 | 0 | 1 | 41 | 8 | 1 |
| 28 Aug | Shinzo Abe announces his intention to resign as Prime Minister and President of the LDP. | Shinzo Abe announces his intention to resign as Prime Minister and President of the LDP. | Shinzo Abe announces his intention to resign as Prime Minister and President of the LDP. | Shinzo Abe announces his intention to resign as Prime Minister and President of the LDP. | Shinzo Abe announces his intention to resign as Prime Minister and President of the LDP. | Shinzo Abe announces his intention to resign as Prime Minister and President of the LDP. | Shinzo Abe announces his intention to resign as Prime Minister and President of the LDP. | Shinzo Abe announces his intention to resign as Prime Minister and President of the LDP. | Shinzo Abe announces his intention to resign as Prime Minister and President of the LDP. | Shinzo Abe announces his intention to resign as Prime Minister and President of the LDP. | Shinzo Abe announces his intention to resign as Prime Minister and President of the LDP. | Shinzo Abe announces his intention to resign as Prime Minister and President of the LDP. | Shinzo Abe announces his intention to resign as Prime Minister and President of the LDP. | Shinzo Abe announces his intention to resign as Prime Minister and President of the LDP. |
| 22–23 Aug | ANN | 42.8 | 7.7 | 3.9 | 3.4 | 4.8 | 1.7 | 0.5 | 0.7 | 0.0 | 2.1 | 32.4 | 32.4 | 10.4 |
| 1–2 Aug | JNN | 32.0 | 4.5 | 1.0 | 3.1 | 3.5 | 2.4 | 0.4 | 0.6 | 0.2 | 0.2 | 47.5 | 4.7 | 15.5 |
| 18–19 Jul | ANN | 40.3 | 8.7 | 4.9 | 3.6 | 3.6 | 1.7 | 0.3 | 1.2 | 0.1 | 1.7 | 33.9 | 33.9 | 6.4 |
| 18–19 Jul | Asahi Shimbun | 30 | 5 | 3 | 2 | 2 | 1 | 1 | 1 | 0 | 0 | 47 | 8 | 17 |
| 17–19 Jul | Nikkei & TV Tokyo | 35 | 4 | 3 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 50 | 3 | 15 |
| 17–19 Jul | Kyodo News | 31.9 | 6.3 | 5.2 | 3.5 | 6.3 | 1.5 | 0.5 | 0.9 | 0.5 | 0.3 | 41.5 | 1.6 | 9.6 |
| 18–19 Jul | Mainichi & SSRC | 29 | 9 | 3 | 5 | 10 | 2 | 1 | 3 | 0 | 1 | 36 | — | 7 |
| 10–13 Jul | Jiji Press Archived 2020-07-18 at the Wayback Machine | 26.0 | 3.3 | 2.8 | 1.3 | 2.2 | 0.6 | 0.2 | 0.7 | 0.2 | — | 60.5 | — | 34.5 |
| 11–12 Jul | go2senkyo & JX | 29.3 | 8.4 | 5.8 | 4.5 | 5.5 | 1.0 | 1.3 | 1.4 | 0.2 | — | 42.6 | — | 13.3 |
| 4–5 Jul | JNN | 35.8 | 5.1 | 3.5 | 2.4 | 3.5 | 0.6 | 0.5 | 0.7 | 0.4 | 1.0 | 42.9 | 3.6 | 7.1 |
| 3–5 Jul | Yomiuri Shimbun | 32 | 5 | 4 | 2 | 4 | 1 | 0 | 1 | 0 | 1 | 46 | 4 | 14 |
| 11–22 Jun | Jiji Press Archived 2020-07-18 at the Wayback Machine | 33.9 | 7.2 | 4.3 | 2.2 | 5.9 | 1.2 | 1.1 | 1.5 | 0.4 | — | 40.8 | — | 6.9 |
| 20–21 Jun | ANN | 43.0 | 9.1 | 3.8 | 4.0 | 6.8 | 0.8 | 0.5 | 1.0 | 0.0 | 3.4 | 27.6 | 27.6 | 15.4 |
| 20–21 Jun | Kyodo News | 37.3 | 7.6 | 3.4 | 3.1 | 7.4 | 1.5 | 1.2 | 1.4 | 0.5 | 0.3 | 34.2 | 2.1 | 3.1 |
| 20–21 Jun | Asahi Shimbun | 29 | 5 | 3 | 3 | 4 | 1 | 0 | 1 | 0 | 0 | 46 | 8 | 17 |
| 20–20 Jun | Mainichi & SSRC | 31 | 10 | 4 | 6 | 11 | 2 | 1 | 3 | 1 | 1 | 30 | — | 1 |
| 13–14 Jun | go2senkyo & JX | 29.2 | 13.0 | 4.2 | 4.4 | 5.4 | 1.5 | 1.0 | 1.2 | 0.2 | — | 39.8 | — | 10.6 |
| 6–7 Jun | JNN | 34.4 | 6.1 | 3.5 | 2.3 | 3.9 | 1.3 | 0.6 | 1.1 | 0.1 | 0.1 | 43.0 | 3.7 | 8.6 |
| 5–7 Jun | Nikkei & TV Tokyo | 30 | 5 | 3 | 2 | 3 | 0 | 0 | 1 | 0 | 0 | 54 | 1 | 24 |
| 5–7 Jun | Yomiuri Shimbun | 34 | 4 | 3 | 3 | 3 | 1 | 0 | 1 | 0 | 1 | 45 | 5 | 11 |
| 21 May – 1 Jun | Jiji Press Archived 2020-07-04 at the Wayback Machine | 30.9 | 6.6 | 4.0 | 3.4 | 7.7 | 1.2 | 0.9 | 1.5 | 0.6 | — | 42.0 | — | 11.1 |
| 29–31 May | Kyodo News | 37.4 | 7.2 | 3.0 | 3.0 | 7.3 | 0.9 | 0.4 | 1.7 | 0.3 | 0.3 | 36.4 | 2.1 | 1.0 |
| 23–24 May | Asahi Shimbun | 26 | 5 | 4 | 3 | 4 | 1 | 1 | 0 | 0 | 1 | 48 | 7 | 22 |
| 23–24 May | Mainichi & SSRC | 25 | 12 | 4 | 7 | 11 | 1 | 1 | 1 | 1 | 1 | 36 | — | 11 |
| 16–17 May | go2senkyo & JX | 28.8 | 12.7 | 4.3 | 5.4 | 6.8 | 0.7 | 0.9 | 1.2 | 0.3 | — | 39.1 | — | 10.3 |
| 16–17 May | ANN | 35.5 | 8.7 | 4.2 | 3.9 | 3.8 | 1.9 | 0.8 | 0.4 | 0.4 | 1.5 | 38.9 | 38.9 | 3.4 |
| 9–10 May | JNN | 35.9 | 6.1 | 4.4 | 2.3 | 3.7 | 0.5 | 0.3 | 0.3 | 0.2 | 0.1 | 40.7 | 5.5 | 4.8 |
| 8–10 May | Nikkei & TV Tokyo | 34 | 3 | 3 | 1 | 4 | 0 | 1 | 1 | 0 | 0 | 50 | 2 | 16 |
| 8–10 May | Kyodo News | 35.1 | 6.9 | 5.3 | 3.2 | 8.7 | 1.2 | 0.7 | 1.5 | 0.2 | 0.4 | 35.5 | 1.3 | 0.4 |
| 8–10 May | Yomiuri Shimbun | 34 | 4 | 4 | 3 | 4 | 1 | 0 | 0 | 0 | 1 | 44 | 3 | 10 |
| 18–19 Apr | Asahi Shimbun | 33 | 5 | 5 | 2 | 3 | 1 | 1 | 1 | 0 | 0 | 43 | 6 | 10 |
| 18–19 Apr | Mainichi Shimbun | 29 | 5 | 5 | 2 | 6 | 1 | 1 | 1 | 1 | 1 | 43 | — | 14 |
| 10–13 Apr | Kyodo News | 33.1 | 7.7 | 3.4 | 3.7 | 5.3 | 1.1 | 0.9 | 2.2 | 0.4 | 0.2 | 39.3 | 2.7 | 6.2 |
| 4 Mar – 13 Apr | Asahi Shimbun | 37 | 9 | 4 | 3 | 3 | 1 | 1 | 1 | 1 | 0 | 38 | 2 | 1 |
| 11–12 Apr | go2senkyo & JX | 29.2 | 9.5 | 2.4 | 6.4 | 6.0 | 1.3 | 1.0 | 1.1 | 0.4 | — | 42.6 | — | 13.4 |
| 11–12 Apr | Yomiuri Shimbun | 34 | 5 | 4 | 3 | 2 | 1 | 0 | 0 | 0 | 0 | 44 | 5 | 10 |
| 10–12 Apr | NHK | 33.3 | 4.0 | 3.3 | 2.9 | 1.6 | 0.5 | 0.6 | 0.5 | 0.2 | 0.7 | 45.3 | 7.3 | 12.0 |
| 8–9 Apr | Mainichi, JNN, & SSRC | 34 | 9 | 3 | 4 | 5 | 1 | 1 | 3 | 1 | 1 | 36 | — | 2 |
| 4–5 Apr | JNN | 34.3 | 5.0 | 4.2 | 3.3 | 3.3 | 1.4 | 0.5 | 0.8 | 0.4 | 0.6 | 41.8 | 4.4 | 7.5 |
| 27–29 Mar | Nikkei & TV Tokyo | 37 | 8 | 4 | 3 | 3 | 1 | 1 | 1 | 0 | 0 | 38 | 3 | 1 |
| 26–28 Mar | Kyodo News | 37.0 | 7.4 | 3.6 | 3.3 | 5.0 | 1.0 | 0.7 | 1.8 | 0.9 | 0.0 | 36.8 | 2.4 | 0.2 |
| 21–22 Mar | ANN | 43.5 | 8.1 | 4.7 | 3.5 | 2.6 | 1.1 | 0.9 | 1.2 | 0.1 | 3.0 | 31.3 | 31.3 | 12.2 |
| 20–22 Mar | Yomiuri Shimbun | 35 | 5 | 4 | 4 | 1 | 1 | 1 | 1 | 0 | 0 | 44 | 4 | 9 |
| 14–16 Mar | Kyodo News | 40.0 | 9.6 | 3.3 | 3.3 | 4.2 | 1.5 | 1.2 | 2.4 | 1.7 | 0.0 | 31.6 | 1.2 | 8.4 |
| 14–15 Mar | Asahi Shimbun | 36 | 6 | 3 | 3 | 1 | 1 | 0 | 1 | 0 | 0 | 40 | 9 | 4 |
| 14–15 Mar | Mainichi Shimbun | 33 | 9 | 4 | 4 | 4 | 1 | 0 | 1 | 1 | 1 | 40 | — | 7 |
| 6–9 Mar | Jiji Press Archived 2020-07-22 at the Wayback Machine | 24.0 | 3.5 | 3.5 | 1.6 | 1.3 | 0.4 | 0.5 | 0.7 | 0.1 | — | 62.4 | — | 38.4 |
| 7–8 Mar | JNN | 36.4 | 6.4 | 3.5 | 3.3 | 1.5 | 0.9 | 0.4 | 0.6 | 0.3 | 0.3 | 41.6 | 4.9 | 5.2 |
| 6–8 Mar | NHK | 36.5 | 6.3 | 3.0 | 3.1 | 1.3 | 0.9 | 0.8 | 0.4 | 0.0 | 0.2 | 41.5 | 6.0 | 5.0 |
| 29 Feb – 1 Mar | go2senkyo & JX | 32.0 | 12.3 | 3.5 | 5.4 | 2.8 | 1.2 | 0.9 | 1.3 | 0.5 | — | 40.1 | — | 8.1 |
| 29 Feb – 1 Mar | go2senkyo & JX | 31.6 | 12.1 | 3.5 | 5.3 | 2.8 | 1.2 | 0.9 | 1.2 | 0.4 | 1.5 | 39.5 | — | 7.9 |
| 21–23 Feb | Nikkei & TV Tokyo | 39 | 9 | 4 | 4 | 3 | 2 | 0 | 1 | 0 | 0 | 34 | 3 | 5 |
| 15–16 Feb | go2senkyo & JX | 32.1 | 12.8 | 4.2 | 5.4 | 3.4 | 0.9 | 1.0 | 1.6 | 0.5 | — | 38.2 | — | 6.1 |
| 15–16 Feb | Asahi Shimbun | 34 | 6 | 3 | 3 | 2 | 2 | 0 | 1 | 0 | 0 | 39 | 10 | 5 |
| 15–16 Feb | ANN Archived 2020-02-25 at the Wayback Machine | 45.4 | 10.2 | 3.8 | 3.4 | 2.7 | 1.6 | 0.4 | 1.1 | 0.7 | 1.1 | 29.6 | 29.6 | 15.8 |
| 15–16 Feb | Kyodo News | 40.5 | 10.9 | 3.1 | 3.5 | 3.5 | 1.9 | 1.0 | 2.3 | 0.5 | 0.1 | 31.0 | 1.7 | 9.5 |
| 14–15 Feb | Yomiuri Shimbun Archived 2020-02-25 at the Wayback Machine | 40 | 5 | 3 | 3 | 3 | 1 | 0 | 1 | 0 | 0 | 39 | 5 | 1 |
| 7–9 Feb | NHK | 37.4 | 6.0 | 4.0 | 2.6 | 1.4 | 1.0 | 1.2 | 0.6 | 0.2 | 0.2 | 38.0 | 7.4 | 0.6 |
| 6–9 Feb | Jiji Press Archived 2020-02-28 at the Wayback Machine | 24.3 | 5.6 | 2.8 | 1.6 | 1.3 | 0.5 | 0.2 | 0.9 | 0.2 | — | 60.6 | — | 36.3 |
| 1–2 Feb | JNN | 38.2 | 4.8 | 2.6 | 3.1 | 1.5 | 0.9 | 0.4 | 1.3 | 0.5 | 0.2 | 41.7 | 4.9 | 3.5 |
| 25–26 Jan | Asahi Shimbun | 34 | 7 | 4 | 3 | 1 | 1 | 0 | 1 | 0 | 0 | 37 | 12 | 3 |
| 24–26 Jan | Nikkei & TV Tokyo | 45 | 10 | 3 | 4 | 2 | 1 | 1 | 1 | 0 | 0 | 30 | 3 | 15 |
| 18–19 Jan | ANN Archived 2020-02-16 at the Wayback Machine | 45.0 | 8.2 | 4.4 | 4.1 | 2.7 | 2.0 | 0.8 | 1.2 | 0.2 | 1.6 | 29.8 | 29.8 | 15.2 |
| 18–19 Jan | Mainichi Shimbun | 34 | 8 | 2 | 2 | 3 | 2 | 1 | 1 | 1 | 1 | 40 | — | 6 |
| 17–19 Jan | Yomiuri Shimbun Archived 2020-02-16 at the Wayback Machine | 41 | 7 | 3 | 3 | 2 | 1 | 0 | 0 | 0 | 0 | 39 | 3 | 2 |
| 11–13 Jan | NHK | 40.0 | 5.4 | 3.4 | 2.9 | 1.6 | 0.9 | 0.7 | 0.2 | 0.2 | 0.2 | 38.5 | 5.9 | 1.5 |
| 10–13 Jan | Jiji Press | 24.9 | 3.3 | 3.4 | 2.6 | 1.0 | 0.9 | 0.7 | 0.5 | 0.2 | — | 60.4 | — | 35.5 |
| 11–12 Jan | go2senkyo & JX | 29.7 | 11.2 | 3.5 | 6.2 | 4.0 | 1.1 | 0.5 | 1.3 | 1.1 | — | 41.4 | — | 11.7 |
| 11–12 Jan | JNN | 38.6 | 5.8 | 3.8 | 2.8 | 2.9 | 1.4 | 0.4 | 0.6 | 0.0 | 0.3 | 38.9 | 4.6 | 0.3 |
| 11–12 Jan | Kyodo News | 43.2 | 6.9 | 2.9 | 4.1 | 4.4 | 1.6 | 1.1 | 2.4 | 0.7 | 0.0 | 31.5 | 1.2 | 11.7 |
| 22 Oct 2017 | 2017 general election | 33.3 | 19.9 | 12.5 | 7.9 | 6.1 | 17.4 | 0.8 | — | — | 1.3 | — | — | 13.4 |

### 2019

| Fieldwork date | Polling firm | LDP | CDP | DPFP | Kibō | Kōmeitō | JCP | Ishin | SDP | LP | Reiwa | N-Koku | Others | No party | Und./ no ans. | Lead |
| 21–22 Dec | Asahi Shimbun | 34 | 6 | 1 | 0 | 4 | 3 | 2 | 1 | Did not exist | 1 | 1 | 1 | 41 | 5 | 7 |
| 20–22 Dec | Nikkei & TV Tokyo | 41 | 8 | 1 | — | 4 | 5 | 2 | 1 | Did not exist | 1 | 0 | 0 | 35 | 3 | 6 |
| 14–15 Dec | go2senkyo & JX | 31.6 | 12.5 | 0.9 | — | 3.8 | 5.6 | 3.8 | 0.9 | Did not exist | 2.1 | 0.6 | — | 38.2 | — | 6.6 |
| 14–15 Dec | ANN Archived 2019-12-28 at the Wayback Machine | 45.6 | 9.8 | 1.3 | — | 2.8 | 5.1 | 1.6 | 0.5 | Did not exist | 2.0 | 0.2 | 0.8 | 30.3 | 30.3 | 15.3 |
| 14–15 Dec | Kyodo News | 36.0 | 10.8 | 1.5 | — | 4.7 | 3.0 | 3.3 | 0.8 | Did not exist | 4.5 | 1.5 | 0.3 | 31.8 | 1.8 | 4.2 |
| 13–15 Dec | Yomiuri Shimbun Archived 2019-12-28 at the Wayback Machine | 37 | 6 | 0 | — | 3 | 3 | 1 | 0 | Did not exist | 1 | 0 | 0 | 44 | 3 | 7 |
| 6–9 Dec | Jiji Press | 23.0 | 3.8 | 0.6 | — | 3.5 | 2.0 | 2.0 | 0.2 | Did not exist | 0.7 | 0.3 | — | 61.1 | — | 38.1 |
| 9 Oct – 9 Dec | Mainichi & SSRC | 38 | 9 | 1 | — | 4 | 3 | 4 | 0 | Did not exist | 2 | 1 | 1 | 36 | — | 2 |
| 7–8 Dec | JNN | 35.1 | 7.3 | 1.0 | — | 3.1 | 3.5 | 1.9 | 0.8 | Did not exist | 1.0 | 0.4 | 0.4 | 40.8 | 5.0 | 5.7 |
| 6–8 Dec | NHK | 36.1 | 5.5 | 0.9 | — | 2.7 | 3.0 | 1.6 | 0.7 | Did not exist | 0.6 | 0.1 | 0.1 | 41.4 | 7.4 | 5.3 |
| 30 Nov – 1 Dec | Mainichi Shimbun | 36 | 8 | 1 | — | 3 | 4 | 4 | 0 | Did not exist | 2 | 0 | 0 | 35 | — | 1 |
| 23–24 Nov | Kyodo News | 41.8 | 8.7 | 0.9 | — | 4.2 | 3.7 | 3.9 | 0.4 | Did not exist | 2.5 | 1.2 | 0.3 | 30.4 | 2.0 | 11.4 |
| 22–24 Nov | Nikkei & TV Tokyo | 39 | 8 | 1 | — | 4 | 4 | 3 | 1 | Did not exist | 1 | 1 | 0 | 36 | 3 | 3 |
| 16–17 Nov | Asahi Shimbun | 36 | 7 | 1 | 0 | 3 | 4 | 2 | 1 | Did not exist | 1 | 0 | 1 | 37 | 7 | 1 |
| 15–17 Nov | Yomiuri Shimbun Archived 2019-11-27 at the Wayback Machine | 37 | 7 | 1 | — | 4 | 4 | 1 | 0 | Did not exist | 2 | 1 | 0 | 38 | 4 | 1 |
| 9–10 Nov | go2senkyo & JX | 35.5 | 12.5 | 1.3 | — | 4.3 | 4.4 | 3.2 | 0.9 | Did not exist | 1.0 | 0.8 | — | 36.3 | — | 0.8 |
| 9–10 Nov | ANN Archived 2019-11-27 at the Wayback Machine | 45.7 | 9.8 | 3.0 | — | 5.3 | 4.2 | 2.1 | 0.6 | Did not exist | 1.1 | 0.5 | 1.2 | 26.5 | 26.5 | 19.2 |
| 9–10 Nov | JNN | 38.2 | 6.3 | 1.0 | — | 4.7 | 2.5 | 2.8 | 0.5 | Did not exist | 0.9 | 0.4 | 0.3 | 37.2 | 5.2 | 1.0 |
| 8–10 Nov | Jiji Press | 30.1 | 3.1 | 0.2 | — | 3.7 | 2.0 | 1.3 | 0.6 | Did not exist | 0.6 | 0.2 | — | 55.5 | — | 25.4 |
| 8–10 Nov | NHK | 36.8 | 6.3 | 1.4 | — | 3.8 | 3.5 | 2.2 | 0.3 | Did not exist | 1.2 | 0.2 | 0.1 | 37.7 | 6.5 | 0.9 |
| 26–27 Oct | Mainichi Shimbun | 36 | 10 | 1 | — | 3 | 3 | 4 | 1 | Did not exist | 1 | 1 | 0 | 34 | — | 2 |
| 26–27 Oct | Kyodo News | 44.6 | 8.5 | 1.3 | — | 4.2 | 3.6 | 3.6 | 1.1 | Did not exist | 2.1 | 0.8 | 0.1 | 28.9 | 1.2 | 15.7 |
| 25–27 Oct | Nikkei & TV Tokyo | 46 | 7 | 0 | — | 5 | 4 | 4 | 0 | Did not exist | 1 | 1 | 0 | 29 | 2 | 17 |
| 19–20 Oct | Asahi Shimbun | 35 | 6 | 1 | 0 | 5 | 2 | 2 | 0 | Did not exist | 1 | 1 | 1 | 39 | 7 | 4 |
| 19–20 Oct | ANN Archived 2019-10-28 at the Wayback Machine | 45.6 | 7.8 | 1.8 | — | 4.3 | 4.3 | 2.9 | 1.3 | Did not exist | 0.6 | 0.3 | 1.1 | 30.0 | 30.0 | 15.6 |
| 18–20 Oct | Yomiuri Shimbun Archived 2019-10-28 at the Wayback Machine | 42 | 5 | 1 | — | 3 | 3 | 2 | 0 | Did not exist | 1 | 0 | 0 | 38 | 5 | 4 |
| 11–14 Oct | Jiji Press | 27.5 | 5.8 | 0.6 | — | 3.9 | 1.8 | 1.2 | 0.1 | Did not exist | 0.6 | 0.2 | — | 56.0 | — | 28.5 |
| 5–6 Oct | JNN | 40.1 | 8.1 | 1.8 | — | 3.5 | 2.9 | 3.1 | 0.4 | Did not exist | 1.0 | 0.2 | 0.6 | 34.2 | 4.2 | 5.9 |
| 5–6 Oct | Kyodo News | 42.1 | 8.0 | 1.6 | — | 3.8 | 3.0 | 4.7 | 0.7 | Did not exist | 2.1 | 1.2 | 0.0 | 31.9 | 0.9 | 10.2 |
| 14–15 Sep | Asahi Shimbun | 37 | 7 | 1 | 0 | 3 | 3 | 3 | 1 | Did not exist | 1 | 0 | 1 | 35 | 8 | 2 |
| 14–15 Sep | ANN Archived 2019-10-28 at the Wayback Machine | 46.9 | 7.0 | 1.7 | — | 5.4 | 5.2 | 4.3 | 0.5 | Did not exist | 1.1 | 0.7 | 1.1 | 26.1 | 26.1 | 20.8 |
| 14–15 Sep | Mainichi Shimbun | 34 | 8 | 1 | — | 5 | 2 | 5 | 0 | Did not exist | 2 | 1 | 1 | 36 | — | 2 |
| 13–15 Sep | Yomiuri Shimbun Archived 2020-03-14 at the Wayback Machine | 38 | 5 | 1 | — | 5 | 4 | 2 | 0 | Did not exist | 1 | 1 | 0 | 39 | 4 | 1 |
| 11–12 Sep | Nikkei & TV Tokyo | 47 | 7 | 1 | — | 4 | 3 | 2 | 1 | Did not exist | 2 | 1 | 0 | 29 | 3 | 18 |
| 11–12 Sep | Kyodo News | 47.7 | 10.0 | 1.5 | — | 3.3 | 3.1 | 2.8 | 0.9 | Did not exist | 3.4 | 1.1 | 0.1 | 23.9 | 2.2 | 23.8 |
| 6–9 Sep | Jiji Press Archived 2020-03-15 at the Wayback Machine | 25.9 | 4.1 | 0.6 | — | 3.5 | 2.0 | 1.8 | 0.5 | Did not exist | 0.8 | 0.5 | — | 58.5 | — | 32.6 |
| 7–8 Sep | JNN | 37.9 | 6.5 | 1.2 | — | 2.9 | 3.7 | 4.5 | 0.4 | Did not exist | 0.6 | 0.3 | 0.4 | 38.0 | 3.7 | 0.1 |
| 6–8 Sep | NHK | 37.3 | 7.2 | 0.7 | — | 2.6 | 3.4 | 3.2 | 0.2 | Did not exist | 0.6 | 0.2 | 0.7 | 37.1 | 6.9 | 0.2 |
| 30 Aug – 1 Sep | Nikkei & TV Tokyo | 40 | 8 | 1 | — | 5 | 3 | 4 | 0 | Did not exist | 2 | 1 | 0 | 32 | 2 | 8 |
| 23–25 Aug | Yomiuri Shimbun Archived 2019-09-04 at the Wayback Machine | 41 | 7 | 1 | — | 4 | 2 | 3 | 0 | Did not exist | 0 | 1 | 0 | 37 | 5 | 4 |
| 17–18 Aug | ANN Archived 2019-08-19 at the Wayback Machine | 44.3 | 10.0 | 2.1 | — | 3.9 | 4.5 | 5.4 | 1.0 | Did not exist | 0.8 | 0.9 | 1.1 | 26.0 | 26.0 | 18.3 |
| 17–18 Aug | Kyodo News | 40.9 | 10.0 | 1.4 | — | 5.1 | 4.3 | 3.8 | 0.7 | Did not exist | 4.3 | 1.3 | 0.2 | 26.6 | 1.4 | 14.3 |
| 9–12 Aug | Jiji Press | 28.0 | 5.8 | 0.6 | — | 4.1 | 2.1 | 2.2 | 0.4 | Did not exist | 1.0 | 0.4 | — | 53.4 | — | 25.4 |
| 3–4 Aug | JNN | 37.4 | 7.8 | 0.9 | — | 5.3 | 2.9 | 3.6 | 0.3 | Did not exist | 1.3 | 0.8 | 0.3 | 37.0 | 2.5 | 0.4 |
| 2–4 Aug | NHK | 36.1 | 7.2 | 1.5 | — | 4.0 | 3.0 | 3.8 | 0.8 | Did not exist | 1.2 | 0.2 | 0.2 | 34.8 | 7.1 | 1.3 |
| 26–28 Jul | Nikkei & TV Tokyo | 37 | 11 | 1 | — | 4 | 5 | 5 | 1 | Did not exist | 2 | 1 | 1 | 30 | 2 | 7 |
| 22–23 Jul | Asahi Shimbun | 34 | 10 | 1 | 0 | 5 | 4 | 4 | 1 | Did not exist | 1 | 0 | 1 | 30 | 9 | 4 |
| 22–23 Jul | Kyodo News | 37.0 | 13.5 | 1.7 | — | 4.6 | 5.3 | 6.8 | 0.7 | Did not exist | 2.2 | 1.0 | 0.3 | 25.9 | 1.0 | 11.1 |
| 22–23 Jul | Yomiuri Shimbun Archived 2019-07-25 at the Wayback Machine | 40 | 12 | 2 | — | 5 | 3 | 5 | 1 | Did not exist | 1 | 1 | 0 | 27 | 4 | 13 |
| 21 Jul | House of Councillors election: Reiwa Shinsengumi and the NHK Party get status as parties. | House of Councillors election: Reiwa Shinsengumi and the NHK Party get status as parties. | House of Councillors election: Reiwa Shinsengumi and the NHK Party get status as parties. | House of Councillors election: Reiwa Shinsengumi and the NHK Party get status as parties. | House of Councillors election: Reiwa Shinsengumi and the NHK Party get status as parties. | House of Councillors election: Reiwa Shinsengumi and the NHK Party get status as parties. | House of Councillors election: Reiwa Shinsengumi and the NHK Party get status as parties. | House of Councillors election: Reiwa Shinsengumi and the NHK Party get status as parties. | House of Councillors election: Reiwa Shinsengumi and the NHK Party get status as parties. | House of Councillors election: Reiwa Shinsengumi and the NHK Party get status as parties. | House of Councillors election: Reiwa Shinsengumi and the NHK Party get status as parties. | House of Councillors election: Reiwa Shinsengumi and the NHK Party get status as parties. | House of Councillors election: Reiwa Shinsengumi and the NHK Party get status as parties. | House of Councillors election: Reiwa Shinsengumi and the NHK Party get status as parties. | House of Councillors election: Reiwa Shinsengumi and the NHK Party get status as parties. | House of Councillors election: Reiwa Shinsengumi and the NHK Party get status as parties. |
| 13–15 Jul | NHK | 34.2 | 6.0 | 1.5 | — | 4.3 | 3.2 | 3.1 | 0.5 | Did not exist | — | Did not exist | 0.5 | 39.1 | 7.7 | 4.9 |
| 13–14 Jul | Asahi Shimbun | 34 | 6 | 1 | 0 | 4 | 5 | 2 | 1 | Did not exist | 1 | Did not exist | 1 | 33 | 12 | 1 |
| 5–8 Jul | Jiji Press Archived 2020-03-16 at the Wayback Machine | 25.8 | 3.9 | 0.6 | — | 4.1 | 2.6 | 1.8 | 0.3 | Did not exist | — | Did not exist | — | 58.3 | — | 32.5 |
| 6–7 Jul | JNN | 40.0 | 6.8 | 1.5 | — | 4.5 | 2.7 | 3.4 | 0.5 | Did not exist | — | Did not exist | 0.7 | 33.5 | 6.5 | 6.5 |
| 5–7 Jul | NHK | 33.4 | 6.0 | 1.6 | — | 4.8 | 2.9 | 2.3 | 0.5 | Did not exist | — | Did not exist | 1.0 | 39.5 | 8.0 | 6.1 |
| 4–5 Jul | Yomiuri Shimbun Archived 2019-07-09 at the Wayback Machine | 38 | 6 | 1 | — | 4 | 3 | 3 | 1 | Did not exist | — | Did not exist | 0 | 37 | 7 | 1 |
| 28–30 Jun | NHK | 34.9 | 5.8 | 1.1 | — | 3.8 | 3.4 | 3.0 | 0.6 | Did not exist | — | Did not exist | 0.2 | 38.3 | 8.9 | 3.4 |
| 28–30 Jun | Nikkei & TV Tokyo | 42 | 10 | 1 | 0 | 4 | 4 | 4 | 1 | Did not exist | — | Did not exist | 0 | 33 | 2 | 9 |
| 28–30 Jun | Yomiuri Shimbun Archived 2019-07-09 at the Wayback Machine | 39 | 5 | 2 | — | 3 | 2 | 2 | 1 | Did not exist | — | Did not exist | 1 | 42 | 3 | 3 |
| 26–27 Jun | Kyodo News | 37.9 | 9.9 | 2.7 | — | 5.1 | 2.9 | 3.7 | 1.5 | Did not exist | — | Did not exist | 0.1 | 32.7 | 3.7 | 5.2 |
| 22–23 Jun | Asahi Shimbun | 37 | 5 | 1 | 0 | 3 | 3 | 2 | 0 | Did not exist | 0 | Did not exist | 1 | 38 | 10 | 1 |
| 21–23 Jun | NHK | 31.6 | 5.7 | 1.1 | — | 4.8 | 3.7 | 2.2 | 0.5 | Did not exist | — | Did not exist | 0.6 | 42.7 | 7.0 | 11.1 |
| 15–16 Jun | Kyodo News | 39.2 | 10.1 | 1.2 | — | 4.3 | 3.2 | 3.9 | 1.6 | Did not exist | — | Did not exist | 0.4 | 33.9 | 2.2 | 5.3 |
| 15–16 Jun | Mainichi Shimbun | 29 | 8 | 1 | — | 3 | 3 | 3 | 1 | Did not exist | — | Did not exist | 1 | 44 | — | 15 |
| 7–10 Jun | Jiji Press | 27.7 | 3.3 | 0.6 | — | 2.6 | 1.8 | 1.2 | 0.3 | Did not exist | — | Did not exist | — | 59.4 | — | 31.7 |
| 7–9 Jun | NHK | 36.7 | 5.1 | 1.2 | — | 3.1 | 2.5 | 2.6 | 0.2 | Did not exist | — | Did not exist | 0.3 | 41.2 | 7.2 | 4.5 |
| 5 Jun | Kibō no Tō loses its legal status as a political party and becomes a political organization. | Kibō no Tō loses its legal status as a political party and becomes a political organization. | Kibō no Tō loses its legal status as a political party and becomes a political organization. | Kibō no Tō loses its legal status as a political party and becomes a political organization. | Kibō no Tō loses its legal status as a political party and becomes a political organization. | Kibō no Tō loses its legal status as a political party and becomes a political organization. | Kibō no Tō loses its legal status as a political party and becomes a political organization. | Kibō no Tō loses its legal status as a political party and becomes a political organization. | Kibō no Tō loses its legal status as a political party and becomes a political organization. | Kibō no Tō loses its legal status as a political party and becomes a political organization. | Kibō no Tō loses its legal status as a political party and becomes a political organization. | Kibō no Tō loses its legal status as a political party and becomes a political organization. | Kibō no Tō loses its legal status as a political party and becomes a political organization. | Kibō no Tō loses its legal status as a political party and becomes a political organization. | Kibō no Tō loses its legal status as a political party and becomes a political organization. | Kibō no Tō loses its legal status as a political party and becomes a political organization. |
| 1–2 Jun | JNN | 40.0 | 4.5 | 0.9 | 0.1 | 3.5 | 2.6 | 1.9 | 0.2 | Did not exist | — | Did not exist | 0.6 | 40.8 | 5.0 | 0.8 |
| 28 May | Shigefumi Matsuzawa resigns as leader of Kibō no Tō; Nariaki Nakayama is elected as leader. | Shigefumi Matsuzawa resigns as leader of Kibō no Tō; Nariaki Nakayama is elected as leader. | Shigefumi Matsuzawa resigns as leader of Kibō no Tō; Nariaki Nakayama is elected as leader. | Shigefumi Matsuzawa resigns as leader of Kibō no Tō; Nariaki Nakayama is elected as leader. | Shigefumi Matsuzawa resigns as leader of Kibō no Tō; Nariaki Nakayama is elected as leader. | Shigefumi Matsuzawa resigns as leader of Kibō no Tō; Nariaki Nakayama is elected as leader. | Shigefumi Matsuzawa resigns as leader of Kibō no Tō; Nariaki Nakayama is elected as leader. | Shigefumi Matsuzawa resigns as leader of Kibō no Tō; Nariaki Nakayama is elected as leader. | Shigefumi Matsuzawa resigns as leader of Kibō no Tō; Nariaki Nakayama is elected as leader. | Shigefumi Matsuzawa resigns as leader of Kibō no Tō; Nariaki Nakayama is elected as leader. | Shigefumi Matsuzawa resigns as leader of Kibō no Tō; Nariaki Nakayama is elected as leader. | Shigefumi Matsuzawa resigns as leader of Kibō no Tō; Nariaki Nakayama is elected as leader. | Shigefumi Matsuzawa resigns as leader of Kibō no Tō; Nariaki Nakayama is elected as leader. | Shigefumi Matsuzawa resigns as leader of Kibō no Tō; Nariaki Nakayama is elected as leader. | Shigefumi Matsuzawa resigns as leader of Kibō no Tō; Nariaki Nakayama is elected as leader. | Shigefumi Matsuzawa resigns as leader of Kibō no Tō; Nariaki Nakayama is elected as leader. |
| 18–19 May | ANN Archived 2019-06-01 at the Wayback Machine | 45.0 | 9.9 | 1.7 | 0.0 | 5.5 | 3.4 | 3.9 | 1.1 | Did not exist | — | Did not exist | 1.3 | 28.2 | 28.2 | 16.8 |
| 18–19 May | Asahi Shimbun | 34 | 5 | 1 | 0 | 4 | 2 | 3 | 0 | Did not exist | — | Did not exist | 2 | 37 | 12 | 3 |
| 18–19 May | Kyodo News | 40.4 | 9.8 | 1.0 | 0.2 | 3.9 | 4.1 | 4.1 | 0.8 | Did not exist | — | Did not exist | 0.1 | 33.8 | 1.8 | 6.6 |
| 18–19 May | Mainichi Shimbun | 31 | 8 | 1 | 0 | 5 | 3 | 4 | 0 | Did not exist | — | Did not exist | 1 | 39 | — | 8 |
| 17–19 May | Yomiuri Shimbun Archived 2020-03-12 at the Wayback Machine | 42 | 4 | 0 | 0 | 4 | 2 | 3 | 0 | Did not exist | — | Did not exist | 1 | 41 | 3 | 1 |
| 10–13 May | Jiji Press | 26.5 | 3.7 | 0.6 | 0.1 | 3.8 | 2.1 | 1.6 | 0.1 | Did not exist | — | Did not exist | — | 59.6 | — | 33.1 |
| 11–12 May | JNN | 40.1 | 6.3 | 0.8 | 0.3 | 3.2 | 2.5 | 2.7 | 0.8 | Did not exist | — | Did not exist | 0.6 | 39.8 | 3.0 | 0.3 |
| 10–12 May | Nikkei & TV Tokyo | 42 | 6 | 1 | 0 | 5 | 3 | 7 | 1 | Did not exist | — | Did not exist | 0 | 36 | 3 | 6 |
| 10–12 May | NHK | 35.2 | 4.8 | 0.7 | 0.0 | 3.1 | 3.2 | 2.9 | 0.6 | Did not exist | — | Did not exist | 0.6 | 40.2 | 8.8 | 5.0 |
| 1–2 May | Kyodo News | 40.9 | 7.8 | 0.9 | 0.1 | 4.2 | 2.3 | 4.3 | 0.3 | Did not exist | — | Did not exist | 0.2 | 37.6 | 1.4 | 3.3 |
| 26–28 Apr | Yomiuri Shimbun Archived 2020-03-02 at the Wayback Machine | 40 | 4 | 1 | 0 | 3 | 3 | 4 | 0 | Did not exist | — | Did not exist | 0 | 40 | 5 | Tied |
| 26 Apr | The Liberal Party is merged into the Democratic Party For the People. | The Liberal Party is merged into the Democratic Party For the People. | The Liberal Party is merged into the Democratic Party For the People. | The Liberal Party is merged into the Democratic Party For the People. | The Liberal Party is merged into the Democratic Party For the People. | The Liberal Party is merged into the Democratic Party For the People. | The Liberal Party is merged into the Democratic Party For the People. | The Liberal Party is merged into the Democratic Party For the People. | The Liberal Party is merged into the Democratic Party For the People. | The Liberal Party is merged into the Democratic Party For the People. | The Liberal Party is merged into the Democratic Party For the People. | The Liberal Party is merged into the Democratic Party For the People. | The Liberal Party is merged into the Democratic Party For the People. | The Liberal Party is merged into the Democratic Party For the People. | The Liberal Party is merged into the Democratic Party For the People. | The Liberal Party is merged into the Democratic Party For the People. |
| 20–21 Apr | ANN Archived 2019-04-23 at the Wayback Machine | 43.0 | 10.1 | 1.4 | 0.1 | 3.8 | 5.0 | 4.0 | 0.4 | 0.2 | — | Did not exist | 1.2 | 30.8 | 30.8 | 12.2 |
| 6 Mar – 15 Apr | Asahi Shimbun | 35 | 7 | 1 | 0 | 4 | 3 | 1 | 1 | 1 | — | Did not exist | 0 | 47 | 0 | 12 |
| 13–14 Apr | Asahi Shimbun | 35 | 7 | 1 | 0 | 3 | 3 | 2 | 1 | 0 | — | Did not exist | 1 | 38 | 9 | 3 |
| 13–14 Apr | Mainichi Shimbun | 30 | 8 | 1 | 0 | 4 | 4 | 3 | 1 | 0 | — | Did not exist | 2 | 42 | — | 12 |
| 5–8 Apr | Jiji Press Archived 2019-04-12 at the Wayback Machine | 26.7 | 4.3 | 0.6 | 0.1 | 3.9 | 1.9 | 1.3 | 0.1 | 0.2 | — | Did not exist | — | 58.5 | — | 31.8 |
| 6–7 Apr | JNN | 40.2 | 4.7 | 1.4 | 0.0 | 3.8 | 2.8 | 2.1 | 0.8 | 0.2 | — | Did not exist | 0.4 | 39.6 | 4.2 | 0.6 |
| 5–7 Apr | NHK | 37.3 | 5.4 | 0.9 | 0.0 | 4.4 | 2.4 | 1.0 | 0.2 | 0.2 | — | Did not exist | 0.2 | 40.7 | 7.3 | 3.4 |
| 1–2 Apr | Kyodo News | 43.0 | 7.9 | 1.6 | 0.2 | 3.5 | 2.7 | 3.5 | 1.4 | 0.3 | — | Did not exist | 0.0 | 33.9 | 2.0 | 9.1 |
| 1–2 Apr | Yomiuri Shimbun Archived 2019-04-08 at the Wayback Machine | 38 | 3 | 1 | 0 | 4 | 3 | 2 | 0 | 0 | — | Did not exist | 0 | 42 | 5 | 4 |
| 1 Apr | Reiwa Shinsengumi is founded as a political organization. | Reiwa Shinsengumi is founded as a political organization. | Reiwa Shinsengumi is founded as a political organization. | Reiwa Shinsengumi is founded as a political organization. | Reiwa Shinsengumi is founded as a political organization. | Reiwa Shinsengumi is founded as a political organization. | Reiwa Shinsengumi is founded as a political organization. | Reiwa Shinsengumi is founded as a political organization. | Reiwa Shinsengumi is founded as a political organization. | Reiwa Shinsengumi is founded as a political organization. | Reiwa Shinsengumi is founded as a political organization. | Reiwa Shinsengumi is founded as a political organization. | Reiwa Shinsengumi is founded as a political organization. | Reiwa Shinsengumi is founded as a political organization. | Reiwa Shinsengumi is founded as a political organization. | Reiwa Shinsengumi is founded as a political organization. |
| 22–24 Mar | Nikkei & TV Tokyo | 43 | 7 | 0 | 0 | 3 | 5 | 3 | 0 | 0 | Did not exist | Did not exist | 0 | 34 | 5 | 9 |
| 22–24 Mar | Yomiuri Shimbun Archived 2019-03-26 at the Wayback Machine | 38 | 4 | 0 | 0 | 4 | 2 | 1 | 1 | 0 | Did not exist | Did not exist | 0 | 44 | 6 | 6 |
| 16–17 Mar | ANN Archived 2019-03-25 at the Wayback Machine | 45.7 | 10.3 | 1.5 | 0.0 | 4.7 | 4.4 | 1.1 | 0.6 | 0.7 | Did not exist | Did not exist | 1.0 | 30.0 | 30.0 | 15.7 |
| 16–17 Mar | Asahi Shimbun | 35 | 5 | 1 | 0 | 4 | 3 | 2 | 0 | 0 | Did not exist | Did not exist | 0 | 41 | 9 | 6 |
| 16–17 Mar | Mainichi Shimbun | 32 | 9 | 0 | 0 | 5 | 4 | 2 | 1 | 1 | Did not exist | Did not exist | 0 | 39 | — | 7 |
| 8–11 Mar | Jiji Press | 25.5 | 4.3 | 0.7 | 0.1 | 2.8 | 2.3 | 1.4 | 0.2 | 0.2 | Did not exist | Did not exist | — | 60.7 | — | 35.2 |
| 9–10 Mar | Kyodo News | 38.3 | 10.5 | 0.8 | 0.7 | 4.3 | 3.7 | 2.7 | 0.7 | 0.3 | Did not exist | Did not exist | 0.2 | 35.2 | 2.6 | 3.1 |
| 8–10 Mar | NHK | 36.7 | 5.5 | 1.0 | 0.1 | 3.4 | 2.8 | 1.0 | 1.1 | 0.2 | Did not exist | Did not exist | 0.1 | 40.6 | 7.6 | 3.9 |
| 2–3 Mar | JNN | 38.8 | 5.7 | 1.1 | 0.2 | 3.7 | 2.2 | 1.8 | 0.2 | 0.9 | Did not exist | Did not exist | 0.4 | 40.0 | 5.1 | 1.2 |
| 23–24 Feb | ANN Archived 2019-03-06 at the Wayback Machine | 44.2 | 9.9 | 0.8 | 0.0 | 4.5 | 4.6 | 1.6 | 1.4 | 0.2 | Did not exist | Did not exist | 0.2 | 32.6 | 32.6 | 11.6 |
| 22–24 Feb | Yomiuri Shimbun Archived 2020-03-13 at the Wayback Machine | 35 | 6 | 0 | 0 | 3 | 2 | 1 | 1 | 0 | Did not exist | Did not exist | 0 | 47 | 5 | 12 |
| 16–17 Feb | Asahi Shimbun | 37 | 6 | 1 | 0 | 3 | 2 | 1 | 0 | 0 | Did not exist | Did not exist | 1 | 41 | 8 | 4 |
| 15–17 Feb | Nikkei & TV Tokyo | 42 | 9 | 1 | 0 | 3 | 4 | 1 | 0 | 0 | Did not exist | Did not exist | 0 | 33 | 6 | 9 |
| 9–11 Feb | NHK | 37.1 | 5.7 | 0.6 | 0.0 | 3.3 | 3.1 | 1.2 | 0.4 | 0.2 | Did not exist | Did not exist | 0.1 | 41.5 | 6.7 | 4.4 |
| 8–11 Feb | Jiji Press Archived 2019-02-16 at the Wayback Machine | 25.4 | 3.4 | 0.3 | 0.1 | 3.3 | 1.8 | 1.0 | 0.6 | 0.3 | Did not exist | Did not exist | — | 61.5 | — | 36.1 |
| 2–3 Feb | JNN | 40.6 | 6.3 | 1.2 | 0.0 | 4.2 | 3.3 | 1.4 | 0.4 | 0.1 | Did not exist | Did not exist | 0.3 | 37.0 | 5.2 | 3.6 |
| 2–3 Feb | Kyodo News | 40.6 | 8.6 | 1.2 | 0.6 | 3.7 | 3.8 | 2.8 | 1.1 | 0.8 | Did not exist | Did not exist | 0.0 | 35.3 | 1.5 | 5.3 |
| 2–3 Feb | Mainichi Shimbun | 31 | 9 | 1 | 0 | 3 | 3 | 3 | 0 | 1 | Did not exist | Did not exist | 1 | 42 | — | 11 |
| 26–27 Jan | ANN Archived 2019-01-28 at the Wayback Machine | 43.6 | 7.1 | 1.2 | 0.2 | 5.1 | 4.1 | 1.4 | 1.4 | 0.5 | Did not exist | Did not exist | 0.2 | 35.2 | 35.2 | 8.4 |
| 25–27 Jan | Nikkei & TV Tokyo | 43 | 9 | 1 | 0 | 4 | 4 | 2 | 1 | 0 | Did not exist | Did not exist | 0 | 33 | 4 | 10 |
| 25–27 Jan | Yomiuri Shimbun Archived 2019-01-28 at the Wayback Machine | 38 | 6 | 1 | 0 | 3 | 2 | 1 | 0 | 0 | Did not exist | Did not exist | 0 | 45 | 4 | 7 |
| 19–20 Jan | Asahi Shimbun | 38 | 7 | 1 | 0 | 3 | 3 | 1 | 0 | 0 | Did not exist | Did not exist | 0 | 38 | 9 | Tied |
| 12–14 Jan | NHK | 35.2 | 6.0 | 1.0 | 0.0 | 5.5 | 2.7 | 0.8 | 0.2 | 0.2 | Did not exist | Did not exist | 0.0 | 42.5 | 5.9 | 7.3 |
| 12–13 Jan | JNN | 37.8 | 5.2 | 0.6 | 0.0 | 3.4 | 2.5 | 1.1 | 0.4 | 0.4 | Did not exist | Did not exist | 0.2 | 43.5 | 4.8 | 5.7 |
| 12–13 Jan | Kyodo News | 36.0 | 9.2 | 1.4 | 0.0 | 2.8 | 2.4 | 2.4 | 0.4 | 0.6 | Did not exist | Did not exist | 0.0 | 43.5 | 1.3 | 7.5 |
| 11–14 Jan | Jiji Press Archived 2019-01-21 at the Wayback Machine | 26.7 | 4.2 | 0.2 | 0.2 | 2.8 | 1.9 | 1.1 | 0.6 | 0.0 | Did not exist | Did not exist | — | 60.0 | — | 33.3 |
| 22 Oct 2017 | 2017 general election | 33.3 | 19.9 | 17.4 | 17.4 | 12.5 | 7.9 | 6.1 | 0.8 | — | — | — | 1.3 | — | — | 13.4 |

### 2018

| Fieldwork date | Polling firm | LDP | CDP | DPFP | DP | Kibō | Kōmeitō | JCP | Ishin | SDP | LP | Others | No party | Und./ no ans. | Lead |
| 13 Nov – 25 Dec | Asahi Shimbun | 37 | 8 | 1 | Did not exist | 0 | 3 | 3 | 1 | 1 | 1 | 0 | 42 | 3 | 5 |
| 15–16 Dec | ANN Archived 2018-12-18 at the Wayback Machine | 45.2 | 8.6 | 1.4 | Did not exist | 0.0 | 3.9 | 5.0 | 2.2 | 1.7 | 0.3 | 1.6 | 30.1 | 30.1 | 15.1 |
| 15–16 Dec | Asahi Shimbun | 35 | 8 | 1 | Did not exist | 0 | 3 | 3 | 1 | 0 | 0 | 1 | 41 | 7 | 6 |
| 15–16 Dec | Kyodo News | 38.6 | 11.5 | 1.4 | Did not exist | 0.2 | 3.8 | 3.4 | 1.4 | 0.5 | 0.8 | 0.1 | 36.1 | 2.2 | 2.5 |
| 15–16 Dec | Mainichi Shimbun | 29 | 10 | 1 | Did not exist | 0 | 4 | 3 | 2 | 0 | 1 | 0 | 43 | — | 14 |
| 14–16 Dec | Nikkei & TV Tokyo | 38 | 9 | 1 | Did not exist | 0 | 4 | 4 | 2 | 1 | 0 | 0 | 37 | 3 | 1 |
| 14–16 Dec | Yomiuri Shimbun | 34 | 8 | 1 | Did not exist | 0 | 4 | 3 | 1 | 0 | 0 | 0 | 46 | 3 | 12 |
| 7–10 Dec | Jiji Press Archived 2018-12-18 at the Wayback Machine | 21.3 | 4.6 | 1.0 | Did not exist | 0.2 | 3.4 | 1.6 | 0.8 | 0.2 | 0.1 | — | 65.1 | — | 43.8 |
| 17 Oct – 10 Dec | Mainichi & SSRC | 32 | 7 | 1 | Did not exist | 0 | 2 | 3 | 2 | 0 | 0 | 0 | 50 | — | 18 |
| 8–9 Dec | NHK | 34.5 | 7.6 | 0.9 | Did not exist | 0.2 | 3.6 | 3.0 | 0.6 | 0.4 | 0.2 | 0.3 | 41.1 | 7.6 | 6.6 |
| 1–2 Dec | JNN | 39.0 | 6.4 | 1.0 | Did not exist | 0.1 | 3.2 | 2.2 | 0.9 | 0.5 | 0.3 | 0.9 | 41.4 | 4.1 | 2.4 |
| 23–25 Nov | Nikkei & TV Tokyo | 40 | 9 | 1 | Did not exist | 0 | 4 | 3 | 1 | 0 | 0 | 0 | 38 | 4 | 2 |
| 23–25 Nov | Yomiuri Shimbun | 41 | 7 | 0 | Did not exist | 0 | 4 | 2 | 1 | 0 | 0 | 0 | 42 | 3 | 1 |
| 17–18 Nov | ANN Archived 2018-12-03 at the Wayback Machine | 46.1 | 10.2 | 2.0 | Did not exist | 0.0 | 3.7 | 4.3 | 1.3 | 0.7 | 0.6 | 0.7 | 30.4 | 30.4 | 15.7 |
| 17–18 Nov | Asahi Shimbun | 36 | 7 | 1 | Did not exist | 0 | 3 | 3 | 1 | 0 | 0 | 1 | 41 | 7 | 5 |
| 17–18 Nov | Mainichi Shimbun | 29 | 12 | 1 | Did not exist | 0 | 5 | 3 | 2 | 0 | 0 | 1 | 41 | — | 12 |
| 9–12 Nov | Jiji Press Archived 2018-12-09 at the Wayback Machine | 26.8 | 4.3 | 0.6 | Did not exist | 0.1 | 4.0 | 2.4 | 1.0 | 0.2 | 0.2 | — | 58.3 | — | 31.5 |
| 9–11 Nov | NHK | 37.4 | 6.2 | 1.5 | Did not exist | 0.1 | 3.7 | 2.9 | 0.4 | 0.7 | 0.4 | 0.2 | 40.7 | 5.8 | 3.3 |
| 3–4 Nov | JNN | 37.3 | 4.9 | 1.2 | Did not exist | 0.5 | 4.3 | 3.0 | 1.1 | 0.4 | 0.1 | 0.3 | 44.0 | 3.0 | 6.7 |
| 3–4 Nov | Kyodo News | 45.2 | 9.1 | 1.3 | Did not exist | 0.3 | 5.3 | 3.6 | 1.9 | 0.8 | 0.8 | 0.0 | 30.2 | 1.5 | 15.0 |
| 26–28 Oct | Nikkei & TV Tokyo | 40 | 9 | 1 | Did not exist | 0 | 4 | 4 | 1 | 0 | 0 | 0 | 36 | 5 | 4 |
| 26–28 Oct | Yomiuri Shimbun | 37 | 5 | 1 | Did not exist | 0 | 3 | 2 | 1 | 0 | 0 | 0 | 46 | 2 | 9 |
| 20–21 Oct | ANN Archived 2018-12-03 at the Wayback Machine | 43.2 | 10.4 | 1.4 | Did not exist | 0.0 | 3.1 | 4.5 | 1.2 | 1.0 | 0.0 | 0.4 | 34.8 | 34.8 | 8.4 |
| 13–14 Oct | Asahi Shimbun | 37 | 6 | 1 | Did not exist | 0 | 2 | 2 | 1 | 0 | 0 | 0 | 40 | 11 | 3 |
| 13–14 Oct | JNN | 38.4 | 5.3 | 1.3 | Did not exist | 0.3 | 3.9 | 2.5 | 1.0 | 0.8 | 0.3 | 0.5 | 42.0 | 3.7 | 3.6 |
| 6–8 Oct | NHK | 36.3 | 6.1 | 0.8 | Did not exist | 0.2 | 3.3 | 2.7 | 0.5 | 0.5 | 0.6 | 0.2 | 41.5 | 7.5 | 5.2 |
| 5–8 Oct | Jiji Press Archived 2018-12-09 at the Wayback Machine | 27.7 | 4.5 | 0.1 | Did not exist | 0.1 | 2.7 | 1.8 | 0.8 | 1.0 | 0.2 | — | 59.2 | — | 31.5 |
| 6–7 Oct | Mainichi Shimbun | 31 | 11 | 0 | Did not exist | 0 | 4 | 3 | 2 | 1 | 1 | 1 | 40 | — | 9 |
| 2–3 Oct | Kyodo News | 44.8 | 8.7 | 1.0 | Did not exist | 0.5 | 4.4 | 2.2 | 2.6 | 0.8 | 0.6 | 0.0 | 33.0 | 1.4 | 11.8 |
| 2–3 Oct | Nikkei & TV Tokyo | 46 | 8 | 1 | Did not exist | 0 | 4 | 3 | 2 | 0 | 0 | 0 | 33 | 3 | 13 |
| 2–3 Oct | Yomiuri Shimbun | 43 | 5 | 0 | Did not exist | 0 | 3 | 2 | 1 | 0 | 0 | 0 | 42 | 2 | 1 |
| 21–23 Sep | Nikkei & TV Tokyo | 48 | 6 | 1 | Did not exist | 0 | 4 | 3 | 1 | 1 | 0 | 0 | 32 | 4 | 16 |
| 21–23 Sep | Yomiuri Shimbun | 40 | 6 | 1 | Did not exist | 0 | 4 | 2 | 1 | 0 | 0 | 0 | 45 | 3 | 5 |
| 20–21 Sep | Kyodo News | 46.2 | 6.3 | 1.5 | Did not exist | 0.3 | 3.3 | 3.2 | 2.1 | 1.0 | 0.4 | — | 33.4 | 2.3 | 12.8 |
| 20 Sep | Shinzō Abe wins the Liberal Democratic Party leadership election, securing a new 3-year term as leader of the party. | Shinzō Abe wins the Liberal Democratic Party leadership election, securing a new 3-year term as leader of the party. | Shinzō Abe wins the Liberal Democratic Party leadership election, securing a new 3-year term as leader of the party. | Shinzō Abe wins the Liberal Democratic Party leadership election, securing a new 3-year term as leader of the party. | Shinzō Abe wins the Liberal Democratic Party leadership election, securing a new 3-year term as leader of the party. | Shinzō Abe wins the Liberal Democratic Party leadership election, securing a new 3-year term as leader of the party. | Shinzō Abe wins the Liberal Democratic Party leadership election, securing a new 3-year term as leader of the party. | Shinzō Abe wins the Liberal Democratic Party leadership election, securing a new 3-year term as leader of the party. | Shinzō Abe wins the Liberal Democratic Party leadership election, securing a new 3-year term as leader of the party. | Shinzō Abe wins the Liberal Democratic Party leadership election, securing a new 3-year term as leader of the party. | Shinzō Abe wins the Liberal Democratic Party leadership election, securing a new 3-year term as leader of the party. | Shinzō Abe wins the Liberal Democratic Party leadership election, securing a new 3-year term as leader of the party. | Shinzō Abe wins the Liberal Democratic Party leadership election, securing a new 3-year term as leader of the party. | Shinzō Abe wins the Liberal Democratic Party leadership election, securing a new 3-year term as leader of the party. | Shinzō Abe wins the Liberal Democratic Party leadership election, securing a new 3-year term as leader of the party. |
| 15–17 Sep | NHK | 35.8 | 4.8 | 0.7 | Did not exist | 0.1 | 4.1 | 3.0 | 0.3 | 0.5 | 0.2 | 0.2 | 43.0 | 7.4 | 7.2 |
| 15–16 Sep | ANN Archived 2018-09-18 at the Wayback Machine | 46.6 | 6.7 | 1.5 | Did not exist | 0.1 | 3.9 | 2.8 | 1.9 | 1.5 | 0.6 | 0.9 | 33.5 | 33.5 | 13.1 |
| 7–10 Sep | Jiji Press | 26.9 | 4.4 | 0.4 | Did not exist | 0.2 | 4.1 | 1.9 | 0.9 | 0.3 | 0.0 | — | 59.2 | — | 32.3 |
| 8–9 Sep | Asahi Shimbun | 40 | 5 | 1 | Did not exist | 0 | 2 | 3 | 1 | 0 | 0 | 0 | 36 | 12 | 4 |
| 1–2 Sep | JNN | 30.5 | 5.5 | 0.5 | Did not exist | 0.0 | 1.8 | 2.8 | 0.8 | 0.8 | 0.2 | 0.8 | 54.2 | 2.2 | 23.7 |
| 1–2 Sep | Mainichi Shimbun | 33 | 9 | 1 | Did not exist | 0 | 3 | 3 | 1 | 1 | 1 | 0 | 40 | — | 7 |
| 25–26 Aug | Kyodo News | 43.8 | 8.8 | 1.5 | Did not exist | 0.7 | 2.3 | 3.2 | 2.6 | 1.3 | 0.8 | | 32.8 | | 11.0 |
| 24–26 Aug | Nikkei & TV Tokyo | 45 | 10 | 1 | Did not exist | 0 | 3 | 3 | 1 | 1 | 0 | | 33 | 3 | 12 |
| 24–26 Aug | Yomiuri Shimbun | 40 | 4 | 1 | Did not exist | 0 | 2 | 2 | 1 | 0 | 0 | 0 | 45 | 3 | 5 |
| 18–19 Aug | ANN Archived 2018-08-26 at the Wayback Machine | 44.0 | 10.7 | 0.7 | Did not exist | 0.1 | 3.8 | 5.6 | 1.6 | 0.7 | 0.1 | 0.7 | 32.0 | 32.0 | 12.0 |
| 3–6 Aug | Jiji Press Archived 2018-08-11 at the Wayback Machine | 27.1 | 4.6 | 0.5 | Did not exist | 0.0 | 3.3 | 2.3 | 0.9 | 0.3 | 0.2 | — | 58.9 | — | 31.8 |
| 4–5 Aug | Asahi Shimbun | 36 | 6 | 1 | Did not exist | 0 | 3 | 4 | 1 | 1 | 0 | 1 | 41 | 6 | 5 |
| 4–5 Aug | JNN | 31.7 | 7.5 | 0.5 | Did not exist | 0.2 | 3.4 | 1.8 | 1.5 | 0.6 | 0.3 | 0.8 | 50.7 | 1.1 | 19.0 |
| 3–5 Aug | NHK | 35.6 | 5.6 | 0.4 | Did not exist | 0.0 | 4.1 | 2.7 | 0.9 | 0.3 | 0.3 | 0.0 | 43.2 | 6.8 | 7.6 |
| 28–29 Jul | Mainchi Shimbun | 30 | 10 | 1 | Did not exist | 1 | 2 | 4 | 2 | 1 | 1 | 1 | 42 | — | 12 |
| 21–22 Jul | ANN Archived 2018-07-25 at the Wayback Machine | 42.1 | 13.1 | 1.4 | Did not exist | 0.1 | 4.3 | 3.7 | 0.9 | 0.7 | 0.3 | 1.1 | 32.3 | 32.3 | 9.8 |
| 21–22 Jul | Kyodo News | 41.6 | 12.4 | 0.9 | Did not exist | 0.4 | 2.9 | 3.0 | 2.1 | 0.5 | 0.5 | | 32.8 | | 8.8 |
| 21–22 Jul | Yomiuri Shimbun | 41 | 8 | 0 | Did not exist | 0 | 3 | 3 | 1 | 1 | 0 | 0 | 41 | 2 | Tied |
| 20–22 Jul | Nikkei & TV Tokyo | 38 | 12 | 1 | Did not exist | 0 | 3 | 4 | 2 | 1 | 0 | 0 | 36 | 4 | 2 |
| 14–15 Jul | Asahi Shimbun | 34 | 8 | 1 | Did not exist | 0 | 4 | 3 | 1 | 1 | 0 | 1 | 39 | 8 | 5 |
| 6–9 Jul | Jiji Press Archived 2018-07-13 at the Wayback Machine | 25.4 | 4.7 | 0.6 | Did not exist | 0.2 | 3.7 | 2.1 | 1.1 | 1.0 | 0.0 | — | 58.2 | — | 32.8 |
| 7–8 Jul | JNN | 29.8 | 8.0 | 0.6 | Did not exist | 0.1 | 3.0 | 3.2 | 1.3 | 1.6 | 0.0 | 0.7 | 50.4 | 1.5 | 20.6 |
| 6–8 Jul | NHK | 38.1 | 7.5 | 0.7 | Did not exist | 0.1 | 2.7 | 3.1 | 0.8 | 0.4 | 0.3 | 0.2 | 39.1 | 7.0 | 1.0 |
| 23–24 Jun | Mainichi Shimbun | 30 | 11 | 0 | Did not exist | 0 | 4 | 2 | 2 | 1 | 0 | 1 | 41 | — | 11 |
| 22–24 Jun | Nikkei & TV Tokyo | 44 | 9 | 0 | Did not exist | 0 | 4 | 4 | 1 | 1 | 0 | 0 | 30 | 6 | 14 |
| 16–17 Jun | ANN Archived 2018-06-19 at the Wayback Machine | 47.7 | 11.2 | 1.5 | Did not exist | 0.2 | 3.0 | 3.0 | 1.1 | 1.1 | 0.2 | 0.7 | 30.3 | 30.3 | 17.4 |
| 16–17 Jun | Asahi Shimbun | 34 | 9 | 1 | Did not exist | 0 | 3 | 3 | 1 | 0 | 0 | 1 | 40 | 8 | 6 |
| 15–17 Jun | NTV Archived 2018-06-17 at the Wayback Machine | 38.9 | 10.2 | 0.4 | Did not exist | 0.3 | 3.4 | 2.9 | 1.9 | 0.8 | 0.0 | 0.0 | 41.1 | 0.1 | 2.2 |
| 15–17 Jun | Yomiuri Shimbun | 38 | 6 | 1 | Did not exist | 0 | 3 | 3 | 0 | 0 | 0 | 0 | 44 | 3 | 6 |
| 8–11 Jun | Jiji Press | 25.8 | 5.2 | 0.6 | Did not exist | 0.1 | 3.8 | 2.0 | 1.1 | 0.4 | 0.1 | — | 58.9 | — | 33.1 |
| 8–10 Jun | NHK | 35.8 | 8.9 | 1.1 | Did not exist | 0.0 | 2.4 | 4.1 | 0.7 | 1.2 | 0.0 | 0.2 | 38.2 | 7.4 | 2.4 |
| 2–3 Jun | JNN | 30.8 | 10.7 | 0.5 | Did not exist | 0.2 | 3.2 | 4.0 | 2.2 | 0.6 | 0.3 | 0.9 | 44.4 | 2.3 | 13.6 |
| 26–27 May | Mainichi Shimbun | 26 | 13 | 1 | Did not exist | 1 | 4 | 4 | 2 | 0 | 1 | 1 | 40 | — | 14 |
| 25–27 May | Nikkei & TV Tokyo | 42 | 12 | 1 | Did not exist | 0 | 4 | 4 | 2 | 1 | 0 | 0 | 30 | 5 | 12 |
| 19–20 May | ANN Archived 2018-05-23 at the Wayback Machine | 41.4 | 15.2 | 1.5 | Did not exist | 0.7 | 4.1 | 5.7 | 1.6 | 1.3 | 0.4 | 1.2 | 26.9 | 26.9 | 3.5 |
| 19–20 May | Asahi Shimbun | 36 | 9 | 1 | Did not exist | 0 | 3 | 3 | 1 | 0 | 0 | 0 | 39 | 8 | 3 |
| 18–20 May | NTV Archived 2018-05-20 at the Wayback Machine | 36.7 | 12.2 | 0.5 | Did not exist | 0.4 | 3.7 | 3.2 | 1.4 | 1.2 | 0.5 | 0.3 | 39.8 | 0.3 | 3.1 |
| 18–20 May | Yomiuri Shimbun | 37 | 7 | 2 | Did not exist | 0 | 4 | 3 | 2 | 0 | 0 | 0 | 42 | 3 | 5 |
| 11–14 May | Jiji Press | 26.8 | 5.0 | 0.6 | Did not exist | 0.2 | 4.4 | 1.7 | 0.7 | 0.4 | 0.2 | — | 57.7 | — | 30.9 |
| 12–13 May | JNN | 30.4 | 8.3 | 0.8 | Did not exist | 0.3 | 3.7 | 2.5 | 1.8 | 0.3 | 0.1 | 0.9 | 49.1 | 1.9 | 18.7 |
| 12–13 May | Kyodo News | 37.1 | 13.3 | 1.1 | Did not exist | 0.7 | 3.7 | 4.5 | 1.5 | 0.8 | 0.7 | | 34.2 | | 2.9 |
| 11–13 May | NHK | 35.9 | 7.9 | 1.1 | Did not exist | 0.1 | 3.5 | 2.3 | 0.7 | 0.3 | 0.3 | 0.3 | 40.4 | 7.3 | 4.5 |
| 7 May | The Democratic Party merges with a majority of Kibō no Tō members to form the Democratic Party For the People. | The Democratic Party merges with a majority of Kibō no Tō members to form the Democratic Party For the People. | The Democratic Party merges with a majority of Kibō no Tō members to form the Democratic Party For the People. | The Democratic Party merges with a majority of Kibō no Tō members to form the Democratic Party For the People. | The Democratic Party merges with a majority of Kibō no Tō members to form the Democratic Party For the People. | The Democratic Party merges with a majority of Kibō no Tō members to form the Democratic Party For the People. | The Democratic Party merges with a majority of Kibō no Tō members to form the Democratic Party For the People. | The Democratic Party merges with a majority of Kibō no Tō members to form the Democratic Party For the People. | The Democratic Party merges with a majority of Kibō no Tō members to form the Democratic Party For the People. | The Democratic Party merges with a majority of Kibō no Tō members to form the Democratic Party For the People. | The Democratic Party merges with a majority of Kibō no Tō members to form the Democratic Party For the People. | The Democratic Party merges with a majority of Kibō no Tō members to form the Democratic Party For the People. | The Democratic Party merges with a majority of Kibō no Tō members to form the Democratic Party For the People. | The Democratic Party merges with a majority of Kibō no Tō members to form the Democratic Party For the People. | The Democratic Party merges with a majority of Kibō no Tō members to form the Democratic Party For the People. |
| 27–29 Apr | Nikkei & TV Tokyo | 40 | 14 | Did not exist | 1 | 0 | 3 | 3 | 2 | 0 | 0 | 0 | 32 | 4 | 8 |
| 14 Mar – 25 Apr | Asahi Shimbun | 33 | 12 | Did not exist | 1 | 1 | 4 | 3 | 2 | 1 | 1 | 0 | 42 | 0 | 9 |
| 21–22 Apr | ANN Archived 2018-04-25 at the Wayback Machine | 37.6 | 13.6 | Did not exist | 2.9 | 0.4 | 3.1 | 4.1 | 1.9 | 1.6 | 0.5 | 0.2 | 34.1 | 34.1 | 3.5 |
| 21–22 Apr | Mainichi Shimbun | 29 | 13 | Did not exist | 1 | 1 | 3 | 3 | 2 | 1 | 0 | 2 | 40 | — | 11 |
| 20–22 Apr | Yomiuri Shimbun | 37 | 10 | Did not exist | 2 | 1 | 2 | 3 | 1 | 0 | 0 | 0 | 40 | 3 | 3 |
| 14–15 Apr | Asahi Shimbun | 33 | 10 | Did not exist | 2 | 0 | 4 | 3 | 1 | 0 | 0 | 0 | 40 | 7 | 7 |
| 13–15 Apr | NTV Archived 2018-04-15 at the Wayback Machine | 33.4 | 9.5 | Did not exist | 1.2 | 0.7 | 4.0 | 3.4 | 2.2 | 0.9 | 0.3 | 0.1 | 44.4 | 0.0 | 1.0 |
| 6–9 Apr | Jiji Press | 25.3 | 5.1 | Did not exist | 0.7 | 0.4 | 3.9 | 2.4 | 1.0 | 0.7 | 0.0 | — | 58.3 | — | 33.0 |
| 7–8 Apr | JNN | 31.7 | 8.8 | Did not exist | 1.8 | 1.1 | 3.1 | 2.4 | 1.8 | 0.1 | 0.1 | 0.8 | 47.3 | 1.1 | 15.6 |
| 6–8 Apr | NHK | 35.4 | 8.5 | Did not exist | 1.4 | 0.3 | 3.5 | 2.9 | 0.8 | 0.5 | 0.3 | 0.2 | 39.2 | 7.0 | 3.8 |
| 31 Mar – 1 Apr | Kyodo News | 39.1 | 14.2 | Did not exist | 0.9 | 1.3 | 3.9 | 3.9 | 2.2 | 0.6 | 0.7 | | 32.0 | | 7.1 |
| 31 Mar – 1 Apr | Yomiuri Shimbun | 36 | 9 | Did not exist | 1 | 0 | 3 | 2 | 1 | 1 | 0 | 0 | 41 | 4 | 5 |
| 24–25 Mar | ANN Archived 2018-04-01 at the Wayback Machine | 40.6 | 16.2 | Did not exist | 3.7 | 0.9 | 3.8 | 4.9 | 1.1 | 1.3 | 0.3 | 0.8 | 26.4 | 26.4 | 14.2 |
| 23–25 Mar | Nikkei & TV Tokyo | 40 | 12 | Did not exist | 2 | 1 | 4 | 4 | 1 | 0 | 0 | 0 | 31 | 5 | 9 |
| 17–18 Mar | Asahi Shimbun | 32 | 11 | Did not exist | 1 | 1 | 3 | 3 | 1 | 0 | 0 | 0 | 36 | 12 | 4 |
| 17–18 Mar | Kyodo News | 36.2 | 11.5 | Did not exist | 2.8 | 1.0 | 3.2 | 2.9 | 3.1 | 1.1 | 0.4 | | 36.5 | | 0.3 |
| 17–18 Mar | Mainichi Shimbun | 29 | 13 | Did not exist | 1 | 1 | 3 | 4 | 2 | | | | 39 | — | 10 |
| 16–18 Mar | NTV Archived 2018-03-21 at the Wayback Machine | 33.3 | 10.3 | Did not exist | 2.0 | 0.9 | 3.7 | 3.9 | 1.3 | 1.7 | 0.5 | 0.7 | 41.7 | 0.1 | 8.4 |
| 9–12 Mar | Jiji Press Archived 2018-03-17 at the Wayback Machine | 25.2 | 5.3 | Did not exist | 1.2 | 0.5 | 2.9 | 2.6 | 0.8 | 0.6 | 0.1 | — | 58.3 | — | 33.1 |
| 9–11 Mar | NHK | 36.3 | 10.2 | Did not exist | 1.2 | 0.6 | 3.1 | 2.6 | 1.2 | 0.7 | 0.2 | 0.0 | 37.9 | 5.9 | 1.6 |
| 9–11 Mar | Yomiuri Shimbun | 38 | 9 | Did not exist | 1 | 1 | 4 | 3 | 1 | 0 | 0 | 0 | 38 | 3 | Tied |
| 3–4 Mar | JNN | 30.3 | 11.4 | Did not exist | 1.1 | 0.8 | 3.8 | 3.6 | 0.9 | 0.4 | 0.0 | 1.1 | 44.9 | 1.7 | 14.6 |
| 3–4 Mar | Kyodo News | 39.5 | 11.1 | Did not exist | 1.4 | 1.6 | 3.7 | 3.7 | 2.6 | 0.3 | 0.6 | | 34.1 | | 5.4 |
| 24–25 Feb | ANN Archived 2018-04-21 at the Wayback Machine | 44.9 | 13.3 | Did not exist | 1.5 | 1.1 | 3.7 | 5.4 | 2.3 | 1.8 | 0.1 | 0.5 | 25.4 | 25.4 | 19.5 |
| 24–25 Feb | Mainichi Shimbun | 35 | 13 | Did not exist | 1 | 0 | 3 | 3 | 3 | 0 | 1 | 1 | 37 | — | 2 |
| 23–25 Feb | Nikkei | 42 | 11 | Did not exist | 2 | 1 | 4 | 2 | 3 | 1 | | | 31 | 4 | 11 |
| 17–18 Feb | Asahi Shimbun | 35 | 10 | Did not exist | 1 | 1 | 3 | 4 | 1 | 1 | 0 | 0 | 38 | 6 | 3 |
| 16–18 Feb | NTV Archived 2018-02-20 at the Wayback Machine | 36.7 | 11.1 | Did not exist | 2.3 | 1.2 | 4.1 | 4.0 | 1.6 | 1.1 | 0.1 | 0.1 | 37.3 | 0.4 | 0.6 |
| 10–12 Feb | NHK | 38.7 | 8.3 | Did not exist | 1.4 | 0.4 | 2.1 | 2.7 | 1.1 | 0.4 | 0.6 | 0.2 | 36.8 | 7.4 | 1.9 |
| 9–12 Feb | Jiji Press | 28.5 | 4.2 | Did not exist | 0.9 | 0.3 | 3.9 | 1.8 | 1.1 | 0.3 | 0.1 | — | 57.6 | — | 29.1 |
| 10–11 Feb | Kyodo News Archived 2018-03-17 at the Wayback Machine | 41.2 | 10.9 | Did not exist | 0.9 | 2.0 | 4.0 | 2.7 | 2.9 | 0.7 | 0.7 | | 33.4 | | 7.8 |
| 10–11 Feb | Yomiuri Shimbun | 42 | 9 | Did not exist | 2 | 1 | 3 | 2 | 1 | 0 | 0 | 0 | 36 | 2 | 6 |
| 3–4 Feb | JNN | 32.9 | 10.6 | Did not exist | 1.0 | 0.8 | 3.4 | 2.8 | 1.8 | 0.3 | 0.3 | 0.9 | 43.3 | 1.8 | 10.4 |
| 26–28 Jan | Nikkei | 43 | 9 | Did not exist | 2 | 1 | 2 | 4 | 1 | 0 | 0 | 1 | 32 | 7 | 11 |
| 26–28 Jan | NTV Archived 2018-01-28 at the Wayback Machine | 31.5 | 13.0 | Did not exist | 1.4 | 1.0 | 3.8 | 2.8 | 1.6 | 1.0 | 0.8 | 0.8 | 41.8 | 0.5 | 10.3 |
| 20–21 Jan | Asahi Shimbun | 39 | 9 | Did not exist | 1 | 1 | 4 | 3 | 1 | 0 | 0 | 1 | 34 | 7 | 5 |
| 20–21 Jan | ANN Archived 2018-01-23 at the Wayback Machine | 42.3 | 16.6 | Did not exist | 3.0 | 1.2 | 3.6 | 4.8 | 2.0 | 0.9 | 0.2 | 1.1 | 24.3 | 24.3 | 18.0 |
| 20–21 Jan | Mainichi Shimbun Archived 2018-08-17 at the Wayback Machine | 30 | 14 | Did not exist | 0 | 2 | 3 | 4 | 2 | 0 | 1 | 0 | 37 | — | 7 |
| 12–15 Jan | Jiji Press | 28.1 | 6.2 | Did not exist | 0.8 | 0.6 | 3.4 | 2.0 | 0.9 | 0.2 | 0.0 | — | 56.0 | — | 27.9 |
| 13–14 Jan | Kyodo News | 38.4 | 12.7 | Did not exist | 1.3 | 1.2 | 2.8 | 3.8 | 2.4 | 0.6 | 0.1 | 0.0 | 35.4 | 1.3 | 3.0 |
| 13–14 Jan | JNN | 33.8 | 11.3 | Did not exist | 1.2 | 0.6 | 3.3 | 3.5 | 1.8 | 0.4 | 0.1 | 0.8 | 41.3 | 1.9 | 7.5 |
| 12–14 Jan | Yomiuri Shimbun | 39 | 8 | Did not exist | 1 | 1 | 4 | 2 | 1 | 1 | 0 | 0 | 40 | 2 | 1 |
| 6–8 Jan | NHK | 38.1 | 9.2 | Did not exist | 1.3 | 1.0 | 2.4 | 3.6 | 1.0 | 0.3 | 0.0 | 0.4 | 36.6 | 6.2 | 1.5 |
| 22 Oct 2017 | 2017 general election | 33.3 | 19.9 | 19.9 | 17.4 | 17.4 | 12.5 | 7.9 | 6.1 | 0.8 | — | 1.3 | — | — | 13.4 |

### 2017

| Fieldwork date | Polling firm | LDP | CDP | DP | Kibō | Kōmeitō | JCP | Ishin | SDP | LP | Others | No party | Und./ no ans. | Lead |
| 16–17 Dec | Asahi Shimbun | 36 | 9 | 1 | 1 | 3 | 3 | 1 | 0 | 0 | 0 | 36 | 10 | Tied |
| 15–17 Dec | Nikkei & TV Tokyo | 40 | 10 | 1 | 1 | 3 | 4 | 2 | 1 | 0 | 0 | 33 | 4 | 7 |
| 15–17 Dec | NTV Archived 2018-03-27 at the Wayback Machine | 34.3 | 10.5 | 2.4 | 1.2 | 2.7 | 4.3 | 1.6 | 0.7 | 0.0 | 0.7 | 41.2 | 0.3 | 6.9 |
| 8–11 Dec | Jiji Press Archived 2018-04-02 at the Wayback Machine | 24.8 | 5.0 | 1.8 | 0.9 | 4.1 | 1.7 | 1.0 | 0.6 | 0.0 | — | 58.7 | — | 33.9 |
| 9–10 Dec | ANN Archived 2018-03-19 at the Wayback Machine | 42.3 | 14.5 | 2.7 | 1.8 | 5.3 | 3.9 | 2.3 | 0.4 | 0.4 | 0.0 | 26.4 | 26.4 | 15.9 |
| 8–10 Dec | NHK | 38.1 | 7.9 | 1.8 | 1.4 | 4.1 | 3.5 | 1.5 | 0.6 | 0.2 | 0.1 | 34.1 | 6.9 | 4.0 |
| 8–10 Dec | Yomiuri Shimbun | 40 | 9 | 1 | 2 | 3 | 2 | 1 | 0 | 0 | 0 | 39 | 2 | 1 |
| 18 Oct – 6 Dec | Mainichi & SSRC | 35 | 12 | 1 | 7 | 4 | 3 | 3 | 1 | 0 | 0 | 33 | — | 2 |
| 2–3 Dec | Kyodo News | 37.1 | 12.5 | 1.8 | 3.2 | 2.7 | 3.1 | 2.2 | 1.1 | 0.3 | — | 34.4 | 1.6 | 2.7 |
| 2–3 Dec | JNN | 35.7 | 9.8 | 1.2 | 1.0 | 3.1 | 3.7 | 1.1 | 0.7 | 0.2 | 0.9 | 41.3 | 1.4 | 5.6 |
| 24–26 Nov | Nikkei | 39 | 14 | 1 | 2 | 5 | 3 | 2 | 0 | 0 | | 30 | 3 | 9 |
| 17–19 Nov | NTV Archived 2017-12-01 at the Wayback Machine | 32.8 | 10.4 | 1.0 | 2.7 | 3.8 | 3.6 | 2.7 | 1.0 | 0.3 | 0.7 | 41.1 | 0.0 | 8.3 |
| 10–13 Nov | Jiji Press Archived 2017-12-01 at the Wayback Machine | 27.9 | 5.4 | 1.2 | 1.5 | 3.6 | 1.8 | 1.3 | 0.3 | 0.1 | — | 55.0 | — | 27.1 |
| 11–12 Nov | Mainichi Shimbun Archived 2017-11-19 at the Wayback Machine | 34 | 14 | 0 | 4 | 4 | 3 | 2 | 0 | 0 | 1 | 34 | — | Tied |
| 11–12 Nov | Asahi Shimbun | 37 | 12 | 1 | 3 | 3 | 3 | 2 | 1 | 0 | 1 | 30 | 7 | 7 |
| 11–12 Nov | JNN | 35.6 | 11.0 | 1.9 | 3.4 | 4.0 | 3.4 | 2.9 | 0.8 | 0.2 | 0.3 | 34.9 | 1.6 | 0.7 |
| 10–12 Nov | NHK | 37.1 | 9.6 | 1.3 | 3.2 | 5.2 | 3.1 | 1.1 | 0.6 | 0.1 | 0.2 | 32.4 | 6.1 | 4.7 |
| 4–5 Nov | ANN Archived 2017-11-07 at the Wayback Machine | 43.7 | 19.9 | 2.2 | 4.4 | 4.3 | 6.1 | 2.7 | 0.8 | 0.3 | 0.3 | 15.3 | 15.3 | 23.8 |
| 1–2 Nov | Nikkei & TV Tokyo | 44 | 14 | 1 | 4 | 5 | 4 | 3 | 0 | 0 | 0 | 23 | 2 | 21 |
| 1–2 Nov | Yomiuri Shimbun | 42 | 14 | 2 | 5 | 3 | 3 | 2 | 0 | 0 | 0 | 25 | 3 | 17 |
| 23–24 Oct | Asahi Shimbun | 39 | 17 | 0 | 3 | 4 | 3 | 2 | 1 | 0 | 0 | 21 | 10 | 18 |
| 23–24 Oct | Yomiuri Shimbun | 43 | 14 | 1 | 5 | 4 | 3 | 2 | 1 | 0 | 0 | 24 | 3 | 19 |
| 22 Oct 2017 | 2017 general election | 33.3 | 19.9 | — | 17.4 | 12.5 | 7.9 | 6.1 | 0.8 | — | 1.3 | — | — | 13.4 |

## Voting intention (party vote)
### 2021

| Fieldwork date | Polling firm | LDP | CDP | NKP | JCP | Ishin | DPFP | SDP | Reiwa | N-Koku | Oth./ WV | Und./ no ans. | Lead |
| 31 Oct 2021 | 2021 general election | 34.7 | 20.0 | 12.4 | 7.3 | 14.0 | 4.5 | 1.8 | 3.9 | 1.4 | 1.7 | — | 14.7 |
| 23–24 Oct | go2senkyo | 32.0 | 21.3 | 8.4 | 7.6 | 12.3 | 2.4 | 1.4 | 1.6 | 0.9 | 0.8 | 11.3 | 10.7 |
| 23–24 Oct | Kyodo News Archived 2021-10-29 at the Wayback Machine | 29.9 | 11.6 | | | | | | | | | | 18.3 |
| 19–20 Oct | Asahi Shimbun | 38 | 13 | 7 | 5 | 4 | 2 | 1 | 1 | 1 | 2 | 23 | 25 |
| 16–17 Oct | Kyodo News | 29.6 | 9.7 | 4.7 | 4.8 | 3.9 | 0.7 | 0.5 | 0.5 | 0.1 | | 39.4 | 19.9 |
| 16–17 Oct | go2senkyo | 33.1 | 21.0 | 6.6 | 8.2 | 9.0 | 2.6 | 1.3 | 1.4 | 0.5 | 2.1 | 14.3 | 12.1 |
| 14–15 Oct | Yomiuri Shimbun | 44 | 12 | 6 | 5 | 5 | 1 | 1 | 1 | 0 | 0 | 24 | 32 |
| 8–11 Oct | Jiji Press Archived 2021-10-19 at the Wayback Machine | 43.6 | 11.8 | 5.9 | 3.2 | 3.6 | 1.6 | 0.5 | 0.3 | 0.4 | | 28.3 | 31.8 |
| 9–10 Oct | Green Ship Archived 2021-10-19 at the Wayback Machine | 36.3 | 19.0 | 6.3 | 7.3 | 7.9 | 2.1 | 1 | 2 | 1 | 1 | 16.9 | 17.3 |
| 9–10 Oct | FNN-Sankei | 39.1 | 9.5 | 3.6 | 3.2 | 3.4 | 1.0 | 0.6 | 0.4 | 0.1 | 4.1 | 35.0 | 29.6 |
| 9–10 Oct | JNN | 38.3 | 9.8 | 4.8 | 4.0 | 3.3 | 1.4 | 0.4 | 0.4 | 0.1 | 3.8 | 33.7 | 28.5 |
| 4–5 Oct | Asahi Shimbun | 41 | 13 | 5 | 4 | 6 | 2 | 1 | 1 | 1 | 2 | 24 | 28 |
| 4–5 Oct | Yomiuri Shimbun | 48 | 13 | 5 | 3 | 5 | 1 | 0 | 1 | 0 | 1 | 24 | 35 |
| 4–5 Oct | Kyodo News | 44.6 | 14.9 | 5.8 | 2.8 | 7.1 | | | | | | | 29.7 |
| 4–5 Oct | Nikkei | 53 | 11 | 4 | 5 | 5 | 1 | 1 | 1 | | | 20 | 42 |
| 4 Oct | Fumio Kishida assumes office as the Prime Minister and President of the LDP. | Fumio Kishida assumes office as the Prime Minister and President of the LDP. | Fumio Kishida assumes office as the Prime Minister and President of the LDP. | Fumio Kishida assumes office as the Prime Minister and President of the LDP. | Fumio Kishida assumes office as the Prime Minister and President of the LDP. | Fumio Kishida assumes office as the Prime Minister and President of the LDP. | Fumio Kishida assumes office as the Prime Minister and President of the LDP. | Fumio Kishida assumes office as the Prime Minister and President of the LDP. | Fumio Kishida assumes office as the Prime Minister and President of the LDP. | Fumio Kishida assumes office as the Prime Minister and President of the LDP. | Fumio Kishida assumes office as the Prime Minister and President of the LDP. | Fumio Kishida assumes office as the Prime Minister and President of the LDP. | Fumio Kishida assumes office as the Prime Minister and President of the LDP. |
| 23–25 Sep | Nikkei | 52 | 10 | 4 | 4 | 6 | 1 | 1 | 2 | | | 20 | 42 |
| 18–19 Sep | ANN | 42.3 | 9.5 | 3.9 | 4.1 | 2.7 | 1.3 | 0.1 | 0.1 | 0 | 3.3 | 32.7 | 32.8 |
| 18–19 Sep | FNN-Sankei | 44.9 | 9.4 | 3.4 | 2.7 | 3.1 | 0.6 | 0.2 | 0.5 | 0.1 | 4.4 | 30.9 | 35.5 |
| 18 Sep | Mainichi Shimbun | 35 | 14 | 5 | 6 | 7 | 2 | | 2 | | | 28 | 21 |
| 10–13 Sep | Jiji Press Archived 2021-10-07 at the Wayback Machine | 49.9 | 10.8 | 6.2 | 3.7 | 4.5 | | | | | | 22.5 | 39.1 |
| 11–12 Sep | Asahi Shimbun | 43 | 11 | 6 | 6 | 6 | 2 | 1 | 1 | 0 | 2 | 22 | 32 |
| 9-11 Sep | Nikkei | 53 | 12 | 2 | 5 | 4 | 1 | 0 | 1 | 0 | 0 | 22 | 41 |
| 4–5 Sep | Green Ship Archived 2021-10-19 at the Wayback Machine | 36.9 | 7.2 | 2.8 | 4.0 | 5.5 | 1.1 | 0.5 | 2.0 | 0.2 | 1.1 | 38.8 | 29.7 |
| 4–5 Sep | Yomiuri Shimbun | 42 | 11 | 4 | 5 | 4 | 1 | 1 | 1 | 0 | 0 | 31 | 31 |
| 3 Sep | Yoshihide Suga announces he will not seek re-election as President of the LDP. | Yoshihide Suga announces he will not seek re-election as President of the LDP. | Yoshihide Suga announces he will not seek re-election as President of the LDP. | Yoshihide Suga announces he will not seek re-election as President of the LDP. | Yoshihide Suga announces he will not seek re-election as President of the LDP. | Yoshihide Suga announces he will not seek re-election as President of the LDP. | Yoshihide Suga announces he will not seek re-election as President of the LDP. | Yoshihide Suga announces he will not seek re-election as President of the LDP. | Yoshihide Suga announces he will not seek re-election as President of the LDP. | Yoshihide Suga announces he will not seek re-election as President of the LDP. | Yoshihide Suga announces he will not seek re-election as President of the LDP. | Yoshihide Suga announces he will not seek re-election as President of the LDP. | Yoshihide Suga announces he will not seek re-election as President of the LDP. |
| 27–29 Aug | Nikkei & TV Tokyo | 43 | 14 | 4 | 5 | 5 | 1 | 0 | 1 | 1 | 0 | 25 | 29 |
| 28 Aug | Mainichi Shimbun | 24 | 14 | 4 | 6 | 8 | 2 | | 2 | | | 37 | 10 |
| 21–22 Aug | ANN | 32.8 | 8.7 | 3.2 | 3.9 | 2.8 | 1.0 | 0.2 | 0.6 | 0.1 | 3.6 | 43.1 | 24.1 |
| 21–22 Aug | FNN-Sankei | 35.6 | 9.8 | 4.1 | 3.7 | 4.6 | 1.2 | 0.4 | 0.7 | 0.5 | 4.5 | 35.0 | 25.8 |
| 14–15 Aug | go2senkyo | 29.7 | 18.4 | 5.7 | 9.6 | 8.5 | 1.5 | 0.6 | 2.1 | 0.4 | | 23.4 | 11.3 |
| 7–9 Aug | Yomiuri-NNN | 37 | 12 | 6 | 5 | 6 | 1 | 1 | 1 | 0 | 0 | 31 | 25 |
| 7–8 Aug | Asahi Shimbun | 35 | 15 | 5 | 6 | 7 | 3 | 0 | 1 | 1 | 1 | 26 | 20 |
| 17–18 Jul | FNN-Sankei | 32.3 | 10.8 | 3.1 | 4.6 | 2.8 | 1.0 | 0.9 | 0.4 | 0.0 | 8.6 | 35.6 | 21.5 |
| 10–11 Jul | go2senkyo | 30.2 | 19.8 | 5.6 | 10.9 | 7.4 | 1.7 | 1.4 | 1.1 | 0.2 | | 21.7 | 10.4 |
| 9-11 Jul | Yomiuri-NNN | 39 | 10 | 6 | 6 | 6 | 2 | 0 | 1 | 0 | 0 | 28 | 29 |
| 25–27 Jun | Nikkei | 41 | 14 | 4 | 4 | 7 | 1 | 1 | 2 | — | — | 27 | 27 |
| 19–20 Jun | FNN-Sankei | 34.0 | 10.1 | 3.3 | 2.5 | 3.9 | 1.0 | 0.5 | 0.2 | 0.3 | 2.8 | 34.6 | 23.9 |
| 19–20 Jun | Asahi | 35 | 14 | 7 | 5 | 7 | 3 | 1 | 2 | 0 | 3 | 23 | 21 |
| 12–13 Jun | go2senkyo | 29.1 | 21.1 | 6.3 | 9.4 | 6.9 | 1.7 | 0.9 | 1.8 | 0.3 | — | 22.6 | 8 |
| 15–16 May | go2senkyo | 29.9 | 20.1 | 5.1 | 9.1 | 8.1 | 2.0 | 1.7 | 2.2 | 0.6 | — | 21.1 | 9.8 |
| 15–16 May | FNN-Sankei | 33 | 10.6 | 4.6 | 2.3 | 4.5 | 0.6 | 0.5 | 0.7 | 0.5 | 2.2 | 40.4 | 22.4 |
| 15–16 May | Asahi Shimbun | 35 | 17 | 5 | 5 | 9 | 2 | 1 | 1 | 1 | 2 | 22 | 18 |
| 3 Mar – 12 Apr | Asahi Shimbun | 46 | 16 | 6 | 5 | 10 | 2 | 1 | 1 | 1 | 2 | 20 | 30 |
| 10–11 Apr | Asahi Shimbun | 40 | 14 | 6 | 6 | 8 | 2 | 1 | 2 | 0 | 2 | 19 | 26 |
| 2–4 April | Yomiuri-NNN | 44 | 13 | 5 | 4 | 5 | 1 | 0 | 1 | 1 | 0 | 25 | 31 |
| 20–21 Mar | Asahi Shimbun | 41 | 14 | 5 | 5 | 8 | 2 | 1 | 2 | 0 | 2 | 20 | 27 |
| 13–14 Feb | Asahi Shimbun | 37 | 16 | 6 | 7 | 8 | 2 | 1 | 2 | 1 | 2 | 18 | 21 |
| 5–7 Feb | Yomiuri-NNN | 41 | 12 | 5 | 3 | 5 | 2 | 1 | 1 | 1 | 0 | 28 | 29 |
| 15–17 Jan | Yomiuri-NNN | 40 | 13 | 5 | 4 | 4 | 2 | 1 | 2 | 1 | 1 | 28 | 27 |

### 2020

| Fieldwork date | Polling firm | LDP | CDP | Kōmeitō | JCP | Ishin | DPFP | SDP | Reiwa | Kibō | N-Koku | Oth./ WV | Und./ no ans. | Lead |
| 25–27 Dec | Nikkei | 41 | 12 | 3 | 4 | 8 | 1 | — | 1 | — | 1 | — | 29 | 29 |
| 4–6 Dec | Yomiuri-NNN | 49 | 9 | 4 | 2 | 7 | 1 | 1 | 1 | — | 1 | 1 | 24 | 40 |
| 27–29 Nov | Nikkei | 48 | 10 | 4 | 3 | 7 | 2 | 1 | 2 | — | 1 | — | 22 | 38 |
| 14–15 Nov | Asahi Shimbun | 45 | 12 | 6 | 4 | 6 | 1 | 1 | 1 | — | 1 | 2 | 21 | 33 |
| 14–15 Nov | ANN | 40.9 | 10.4 | 3.8 | 3.5 | 3.8 | 0.6 | 1 | 0.6 | — | 0.2 | 1.6 | 33.6 | 30.5 |
| 6–8 Nov | Yomiuri-NNN | 54 | 8 | 5 | 4 | 6 | 1 | 0 | 1 | — | 1 | 0 | 20 | 46 |
| 17–18 Oct | Asahi Shimbun | 46 | 12 | 5 | 4 | 9 | 2 | 1 | 2 | — | 1 | 1 | 17 | 34 |
| 16–18 Oct | Yomiuri Shimbun | 47 | 11 | 5 | 3 | 6 | 1 | 1 | 2 | — | 1 | 1 | 14 | 36 |
| 17–18 Oct | ANN | 40.1 | 9.3 | 4.2 | 3.8 | 3.8 | 0.7 | 0.3 | 0.5 | — | 0.1 | 2.0 | 35.2 | 30.8 |
| 19–20 Sep | Yomiuri-NNN | 55 | 8 | 6 | 3 | 6 | 1 | 0 | 1 | — | 0 | — | 20 | 47 |
| 19–20 Sep | ANN | 45.1 | 11.9 | 4.3 | 3.0 | 2.9 | 0.8 | 0.3 | 0.2 | — | 0 | 3.5 | 28 | 33.2 |
| 16–17 Sep | Nikkei | 54 | 10 | 4 | 2 | 6 | 1 | 1 | 2 | — | 1 | — | 18 | 44 |
| 16–17 Sep | Asahi Shimbun | 48 | 12 | 6 | 4 | 8 | 1 | 1 | 2 | — | 1 | 1.0 | 15 | 36 |
| 16 Sep | Yoshihide Suga assumes office as the Prime Minister and President of the LDP. | Yoshihide Suga assumes office as the Prime Minister and President of the LDP. | Yoshihide Suga assumes office as the Prime Minister and President of the LDP. | Yoshihide Suga assumes office as the Prime Minister and President of the LDP. | Yoshihide Suga assumes office as the Prime Minister and President of the LDP. | Yoshihide Suga assumes office as the Prime Minister and President of the LDP. | Yoshihide Suga assumes office as the Prime Minister and President of the LDP. | Yoshihide Suga assumes office as the Prime Minister and President of the LDP. | Yoshihide Suga assumes office as the Prime Minister and President of the LDP. | Yoshihide Suga assumes office as the Prime Minister and President of the LDP. | Yoshihide Suga assumes office as the Prime Minister and President of the LDP. | Yoshihide Suga assumes office as the Prime Minister and President of the LDP. | Yoshihide Suga assumes office as the Prime Minister and President of the LDP. | Yoshihide Suga assumes office as the Prime Minister and President of the LDP. |
| 18–19 Jul | Asahi Shimbun | 35 | 13 | 6 | 5 | 10 | 3 | 2 | 2 | 1 | 2 | 3 | 18 | 22 |
| 13–14 Jun | go2senkyo | 30.6 | 18.4 | 5.3 | 7.8 | 12.5 | 2.2 | 1.6 | 3.1 | — | 0.6 | — | 17.8 | 12.2 |
| 4 Mar – 13 Apr | Asahi | 44 | 17 | 6 | 6 | 8 | 3 | 2 | 3 | — | 2 | 2 | 7 | 27 |
| 22 Oct 2017 | 2017 general election | 33.3 | 19.9 | 12.5 | 7.9 | 6.1 | N/A | 0.8 | — | 17.4 | 1.3 | — | — | 13.4 |

## Voting intention (district vote)
### 2021

| Fieldwork date | Polling firm | LDP | Kōmeitō | CDP | JCP | Ishin | DPFP | SDP | Reiwa | N-Koku | Oth./ WV | Und./ no ans. | Lead |
| 4–5 Oct | Mainichi Shimbun | 41 | 41 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | — | 24 | 7 |

## Preferred outcome
### 2021

| Fieldwork date | Polling firm | LDP re-election | Change in government | Evenly matched | Government gains seats | Opposition gains seats | Neither / Same as now | Und./ no ans. |
| 23–24 Oct | Kyodo News Archived 2021-10-29 at the Wayback Machine | 34.6 | 11.4 | 49.4 | – | – | – | 4.6 |
| 22–24 Oct | NHK | – | – | – | 24.1 | 30.5 | 38.5 | 6.8 |
| 19–20 Oct | Asahi Shimbun | 46 | 22 | – | – | – | – | 32 |
| 16–17 Oct | Kyodo News | 36.3 | 13.9 | 45.2 | – | – | – | 4.6 |
| 16–17 Oct | go2senkyo | 43.7 | 23.8 | – | – | – | 32.5 | 32.5 |
| 15–17 Oct | NHK | – | – | – | 25.1 | 30.9 | 39.0 | 5.0 |
| 14–15 Oct | Yomiuri Shimbun | 63 | 24 | – | – | – | – | 13 |
| 9–10 Oct | FNN-Sankei | – | – | – | 22.1 | 35.9 | 36.5 | 5.5 |
| 8–10 Oct | NHK | – | – | – | 25.4 | 28.3 | 40.9 | 5.4 |
| 4–5 Oct | Asahi Shimbun | – | – | – | 17 | 33 | 32 | 18 |
| 18–19 Sep | ANN | – | – | – | 45 | 35 | – | 20 |
| 11–12 Sep | Asahi Shimbun | – | – | – | 19 | 36 | 36 | 9 |
| 10–12 Sep | NHK | – | – | – | 22 | 26 | 47 | 5 |
| 7–8 Aug | Asahi Shimbun | – | – | – | 15 | 37 | 34 | 14 |

## Preferred prime minister

Note: Polls phrase this question as "Who should be leader of the LDP for the next term?" or "Who should be Prime Minister for the next term?", including Opposition Leader Yukio Edano only in the latter case. Because of this, some polls excluded Shinzō Abe (even while he was the incumbent), as he had already been elected as LDP leader three times, the maximum presently allowed under party rules.

### 2021

| Fieldwork date | Polling firm | LDP | LDP | LDP | LDP | LDP | LDP | LDP | LDP | CDP | Others | NOT/ UD/NA |
| Fieldwork date | Polling firm | Yoshihide Suga | Shinzo Abe | Shigeru Ishiba | Fumio Kishida | Taro Kono | Shinjirō Koizumi | Seiko Noda | Sanae Takaichi | Yukio Edano | Others | NOT/ UD/NA |
| 19–20 Oct | Asahi Shimbun | | | | 54 | | | | | 14 | 32 | 32 |
| 4 Oct | Fumio Kishida assumes office as the Prime Minister and President of the LDP. | Fumio Kishida assumes office as the Prime Minister and President of the LDP. | Fumio Kishida assumes office as the Prime Minister and President of the LDP. | Fumio Kishida assumes office as the Prime Minister and President of the LDP. | Fumio Kishida assumes office as the Prime Minister and President of the LDP. | Fumio Kishida assumes office as the Prime Minister and President of the LDP. | Fumio Kishida assumes office as the Prime Minister and President of the LDP. | Fumio Kishida assumes office as the Prime Minister and President of the LDP. | Fumio Kishida assumes office as the Prime Minister and President of the LDP. | Fumio Kishida assumes office as the Prime Minister and President of the LDP. | Fumio Kishida assumes office as the Prime Minister and President of the LDP. | Fumio Kishida assumes office as the Prime Minister and President of the LDP. |
| 23–25 Sep | Nikkei | | | | 17 | 46 | | 5 | 14 | | | 18 |
| 18–19 Sep | ANN | | | | 18 | 48 | | 7 | 10 | | | 17 |
| 18–19 Sep | FNN-Sankei | | | | 15.2 | 52.6 | | 6.4 | 11.6 | | | 14.2 |
| 18 Sep | Mainichi Shimbun | | | | 13 | 43 | | 6 | 15 | | | 23 |
| 17–18 Sep | Kyodo News | | | | 18.5 | 48.6 | | 3.3 | 15.7 | | | |
| 10–13 Sep | Jiji Press Archived 2021-10-07 at the Wayback Machine | | | | 14.3 | 31.6 | | 7.2 | 0.9 | | | |
| 11–12 Sep | Asahi Shimbun | | | 16 | 14 | 33 | | 3 | 8 | | 26 | 26 |
| 9-11 Sep | Nikkei | | 6 | 17 | 14 | 27 | 10 | 2 | 7 | | 1 | 16 |
| 4–5 Sep | Kyodo | | | 26.6 | 18.8 | 31.9 | | 4.4 | 4.0 | | 1.8 | |
| 4–5 Sep | Yomiuri Shimbun | | 5 | 21 | 12 | 23 | 11 | 2 | 3 | | 2 | 22 |
| 3 Sep | Yoshihide Suga announces he will not seek re-election as President of the LDP. | Yoshihide Suga announces he will not seek re-election as President of the LDP. | Yoshihide Suga announces he will not seek re-election as President of the LDP. | Yoshihide Suga announces he will not seek re-election as President of the LDP. | Yoshihide Suga announces he will not seek re-election as President of the LDP. | Yoshihide Suga announces he will not seek re-election as President of the LDP. | Yoshihide Suga announces he will not seek re-election as President of the LDP. | Yoshihide Suga announces he will not seek re-election as President of the LDP. | Yoshihide Suga announces he will not seek re-election as President of the LDP. | Yoshihide Suga announces he will not seek re-election as President of the LDP. | Yoshihide Suga announces he will not seek re-election as President of the LDP. | Yoshihide Suga announces he will not seek re-election as President of the LDP. |
| 27–29 Aug | Nikkei & TV Tokyo | 11 | 7 | 16 | 13 | 16 | 9 | 2 | 3 | | 2 | 22 |
| 26 Aug | The dates for the LDP leadership election are formally set. | The dates for the LDP leadership election are formally set. | The dates for the LDP leadership election are formally set. | The dates for the LDP leadership election are formally set. | The dates for the LDP leadership election are formally set. | The dates for the LDP leadership election are formally set. | The dates for the LDP leadership election are formally set. | The dates for the LDP leadership election are formally set. | The dates for the LDP leadership election are formally set. | The dates for the LDP leadership election are formally set. | The dates for the LDP leadership election are formally set. | The dates for the LDP leadership election are formally set. |
| 21–22 Aug | FNN-Sankei | 2.5 | 8.6 | 15.5 | 3.5 | 17.9 | 11.4 | 1.1 | 1.5 | 4.3 | 1.8 | 32 |
| 21–22 Aug | ANN | 8 | 8 | 19 | 5 | 15 | 11 | 2 | 3 | | 3 | 26 |
| 7–9 Aug | Yomiuri-NNN | 3 | 10 | 19 | 4 | 18 | 17 | 2 | | | 2 | 24 |
| 7–8 Aug | JNN | 5 | 10 | 20 | 4 | 17 | 12 | 3 | | | 4 | 25 |
| 23–25 Jul | Nikkei | 5 | 6 | 19 | 4 | 19 | 12 | 2 | | 4 | 3 | 26 |
| 17–18 Jul | ANN | 9 | 8 | 20 | 3 | 15 | 8 | 2 | | | 3 | 32 |
| 17–18 Jul | FNN-Sankei | 9.1 | 8.7 | 16 | 3.2 | 18.1 | 8.5 | 0.8 | | 5.5 | 1.4 | 28.4 |
| 9-11 Jul | Yomiuri-NNN | 4 | 11 | 18 | 4 | 20 | 15 | 2 | | | 4 | 22 |
| 3–4 Jul | JNN | 8 | 12 | 16 | 3 | 18 | 12 | 2 | | | 2 | 27 |
| 25–27 Jun | Nikkei | 6 | 9 | 13 | 3 | 23 | 13 | 2 | | 6 | 3 | 22 |
| 19–20 Jun | FNN-Sankei | 10.7 | 8.5 | 16.4 | 2.9 | 19.2 | 8.7 | 1.4 | | 4.4 | 1.7 | 19 |
| 5–6 Jun | JNN | 7 | 12 | 17 | 5 | 19 | 12 | 2 | | | 2 | 24 |
| 28–30 May | Nikkei | 6 | 9 | 14 | 3 | 23 | 11 | 1 | | 6 | 4 | 22 |
| 8–9 May | JNN | 8 | 11 | 16 | 4 | 22 | 12 | 2 | | | 3 | 22 |
| 7–9 May | Yomiuri-NNN | 4 | 11 | 19 | 2 | 23 | 13 | 2 | | | 3 | 22 |
| 23–25 Apr | Nikkei | 4 | 8 | 16 | 5 | 24 | 14 | 2 | | 3 | 3 | 20 |
| 17–18 Apr | ANN | 9 | 7 | 17 | 4 | 20 | 11 | 2 | | | 4 | 26 |
| 3–4 Apr | JNN | 9 | | 20 | 5 | 23 | 15 | 3 | | | 3 | 21 |
| 20–21 Mar | ANN | 9 | 7 | 18 | 3 | 21 | 11 | 2 | | | 3 | 26 |
| 6–7 Mar | JNN | 7 | | 19 | 5 | 28 | 12 | | | | 4 | 22 |
| 5–7 Mar | Yomiuri-NNN | 3 | 9 | 19 | 4 | 26 | 17 | 3 | | | 3 | 18 |
| 20–21 Feb | FNN-Sankei | 4.6 | 6.4 | 16.1 | 3.9 | 22.4 | 13.2 | 1.8 | | 3.8 | 2.4 | 25.6 |
| 13–14 Feb | ANN | 8 | 6 | 17 | 4 | 22 | 13 | 3 | | | 2 | 25 |
| 6–7 Feb | JNN | 8 | | 21 | 4 | 22 | 13 | 3 | | | 3 | 25 |
| 29–31 Jan | Nikkei | 6 | 7 | 16 | 3 | 25 | 13 | 2 | | 5 | 2 | 19 |
| 9–10 Jan | JNN | 9 | | 26 | 4 | 20 | 15 | 2 | | | 2 | 22 |

### 2020

| Fieldwork date | Polling firm | LDP | LDP | LDP | LDP | LDP | LDP | CDP | Others | NOT/ UD/NA |
| Fieldwork date | Polling firm | Yoshihide Suga | Shinzō Abe | Shigeru Ishiba | Fumio Kishida | Tarō Kōno | Shinjirō Koizumi | Yukio Edano | Others | NOT/ UD/NA |
| 5–6 Dec | JNN | 14 | | 23 | 6 | 17 | 15 | | 6 | 19 |
| 7–8 Nov | JNN | 16 | | 20 | 6 | 18 | 14 | | 6 | 21 |
| 3–4 Oct | JNN | 20 | | 20 | 7 | 19 | 12 | | 4 | 18 |
| 16 Sep | Yoshihide Suga assumes office as the Prime Minister and President of the LDP. | Yoshihide Suga assumes office as the Prime Minister and President of the LDP. | Yoshihide Suga assumes office as the Prime Minister and President of the LDP. | Yoshihide Suga assumes office as the Prime Minister and President of the LDP. | Yoshihide Suga assumes office as the Prime Minister and President of the LDP. | Yoshihide Suga assumes office as the Prime Minister and President of the LDP. | Yoshihide Suga assumes office as the Prime Minister and President of the LDP. | Yoshihide Suga assumes office as the Prime Minister and President of the LDP. | Yoshihide Suga assumes office as the Prime Minister and President of the LDP. | Yoshihide Suga assumes office as the Prime Minister and President of the LDP. |
| 5–6 Sep | JNN | 48 | | 27 | 6 | | | | 0 | 16 |
| 29–30 Aug | Nikkei | 11 | | 28 | 6 | 15 | 14 | 3 | 0 | 21 |
| 28 Aug | Shinzo Abe announces his intention to resign as Prime Minister and President of the LDP. | Shinzo Abe announces his intention to resign as Prime Minister and President of the LDP. | Shinzo Abe announces his intention to resign as Prime Minister and President of the LDP. | Shinzo Abe announces his intention to resign as Prime Minister and President of the LDP. | Shinzo Abe announces his intention to resign as Prime Minister and President of the LDP. | Shinzo Abe announces his intention to resign as Prime Minister and President of the LDP. | Shinzo Abe announces his intention to resign as Prime Minister and President of the LDP. | Shinzo Abe announces his intention to resign as Prime Minister and President of the LDP. | Shinzo Abe announces his intention to resign as Prime Minister and President of the LDP. | Shinzo Abe announces his intention to resign as Prime Minister and President of the LDP. |
| 22–23 Aug | ANN | 4 | 11 | 27 | 4 | 9 | 15 | | 2 | 28 |
| 15–16 Aug | go2senkyo | 5.4 | 14.6 | 26.2 | 3.8 | 13.0 | 10.0 | 4.5 | 22.5 | |
| 1–2 Aug | JNN | 4 | 12 | 28 | 4 | 10 | 14 | | 3 | 27 |
| 18–19 Jul | ANN | 3 | 13 | 29 | 4 | 7 | 13 | | 3 | 28 |
| 17–19 Jul | Nikkei | 4 | 12 | 26 | 5 | 9 | 15 | 5 | 3 | 21 |
| 4–5 Jul | JNN | 4 | 14 | 33 | 5 | 10 | 12 | | 2 | 21 |
| 20–21 Jun | ANN | 4 | 12 | 29 | 4 | 7 | 14 | | 3 | 27 |
| 13–14 Jun | go2senkyo | 3.7 | 18.4 | 29.6 | 4 | 5.8 | 9.4 | 6 | 23 | |
| 6–7 Jun | JNN | 4 | 13 | 28 | 5 | 8 | 15 | | 3 | 26 |
| 5–7 Jun | Nikkei | 3 | 14 | 23 | 4 | 8 | 15 | 6 | 2 | 24 |
| 23–24 May | Asahi | 3 | | 31 | 4 | 9 | 15 | | 7 | 31 |
| 16–17 May | ANN | 3 | 11 | 25 | 4 | 7 | 14 | | 5 | 31 |
| 9–10 May | JNN | 5 | 17 | 23 | 6 | 7 | 14 | | 3 | 25 |
| 8–10 May | Kyodo | 1.5 | 15.5 | 12.7 | 2.6 | 4.4 | 8.4 | 3.4 | 2.2 | 49.3 |
| 10–13 Apr | Kyodo | 3.1 | 16.8 | 18 | 2.5 | 3.8 | 7.2 | 4.1 | 1.9 | 42.6 |
| 4 Mar – 13 Apr | Asahi | 6 | | 24 | 6 | 7 | 13 | 6 | 0 | 38 |
| 10–13 Apr | Kyodo | 1.1 | 17.8 | 20.9 | 3.8 | 4.1 | 10.6 | 4 | 2.7 | 35 |
| 4–5 Apr | JNN | 4 | 14 | 25 | 5 | 7 | 16 | | 4 | 25 |
| 27–29 Mar | Nikkei | 4 | 16 | 22 | 4 | 7 | 13 | 6 | 1 | 26 |
| 21–22 Mar | ANN | 4 | 16 | 28 | 6 | 6 | 11 | | 3 | 26 |
| 7–8 Mar | JNN | 4 | 15 | 28 | 6 | 6 | 15 | | 2 | 25 |
| 15–16 Feb | Asahi | 5 | | 25 | 6 | 8 | 14 | | 10 | 32 |
| 15–16 Feb | Kyodo | 2.1 | 13.4 | 22.6 | 3.9 | 5.4 | 12 | 5.7 | 3.9 | 31 |
| 1–2 Feb | JNN | 6 | 16 | 24 | 6 | 8 | 14 | | 3 | 24 |
| 18–19 Jan | Mainichi | | 22 | 19 | 2 | | 19 | | 0 | 0 |
| 11–12 Jan | Kyodo | 4.5 | 13.1 | 18.2 | 3.5 | 6.9 | 11.8 | 4.6 | 1.1 | 36.3 |
| 11–12 Jan | JNN | 5 | 17 | 25 | 5 | 9 | 16 | | 3 | 22 |

## Cabinet approval/disapproval ratings
### 2021

| Fieldwork date | Polling firm | Prime Minister | Approve | Disapprove | Und. / no answer |
| 23–24 Oct | go2senkyo | Fumio Kishida | 38.8 | 31.2 | 30 |
| 16–17 Oct | go2senkyo | Fumio Kishida | 38.5 | 27.0 | 34.5 |
| 16–17 Oct | Kyodo News | Fumio Kishida | 55.9 | 32.8 | 11.3 |
| 16–17 Oct | ANN | Fumio Kishida | 43.4 | 28.3 | 28.3 |
| 15–17 Oct | NHK | Fumio Kishida | 45.6 | 27.9 | 26.5 |
| 9–10 Oct | Green Ship Archived 2021-10-19 at the Wayback Machine | Fumio Kishida | 43.2 | 32.4 | 24.4 |
| 9–10 Oct | FNN-Sankei | Fumio Kishida | 63.2 | 27.4 | 9.3 |
| 9–10 Oct | JNN | Fumio Kishida | 58.6 | 34.8 | 6.6 |
| 8–10 Oct | NHK | Fumio Kishida | 49.1 | 24.3 | 26.5 |
| 4–5 Oct | Asahi Shimbun | Fumio Kishida | 45 | 20 | 35 |
| 4–5 Oct | Yomiuri Shimbun | Fumio Kishida | 56 | 27 | 18 |
| 4–5 Oct | Mainichi Shimbun | Fumio Kishida | 49 | 40 | 11 |
| 4–5 Oct | Kyodo News | Fumio Kishida | 55.7 | 23.7 | 20.6 |
| 4–5 Oct | Nikkei-TV Tokyo | Fumio Kishida | 59 | 25 | 16 |
| 4 Oct | Fumio Kishida assumes office as the Prime Minister and President of the LDP. | Fumio Kishida assumes office as the Prime Minister and President of the LDP. | Fumio Kishida assumes office as the Prime Minister and President of the LDP. | Fumio Kishida assumes office as the Prime Minister and President of the LDP. | Fumio Kishida assumes office as the Prime Minister and President of the LDP. |
| 23–25 Sep | Nikkei | Yoshihide Suga | 38 | 51 | 11 |
| 18–19 Sep | ANN | Yoshihide Suga | 29.4 | 49.6 | 21.0 |
| 18–19 Sep | FNN-Sankei | Yoshihide Suga | 42.3 | 52.2 | 5.5 |
| 18 Sep | Mainichi Shimbun | Yoshihide Suga | 37 | 55 | 8 |
| 10–13 Sep | Jiji Press Archived 2021-10-07 at the Wayback Machine | Yoshihide Suga | 33.4 | 47.5 | 19.1 |
| 11–12 Sep | Asahi Shimbun | Yoshihide Suga | 30 | 51 | 19 |
| 10–12 Sep | NHK | Yoshihide Suga | 30 | 50 | 20 |
| 9-11 Sep | Nikkei | Yoshihide Suga | 36 | 56 | 8 |
| 4–5 Sep | Green Ship Archived 2021-10-19 at the Wayback Machine | Yoshihide Suga | 34.6 | 54.1 | 11.3 |
| 4–5 Sep | Yomiuri Shimbun | Yoshihide Suga | 31 | 57 | 12 |
| 3 Sep | Yoshihide Suga announces he will not seek re-election as President of the LDP. | Yoshihide Suga announces he will not seek re-election as President of the LDP. | Yoshihide Suga announces he will not seek re-election as President of the LDP. | Yoshihide Suga announces he will not seek re-election as President of the LDP. | Yoshihide Suga announces he will not seek re-election as President of the LDP. |
| 28 Aug | Mainichi Shimbun | Yoshihide Suga | 26 | 66 | 8 |
| 27–29 Aug | Nikkei & TV Tokyo | Yoshihide Suga | 34 | 56 | 10 |
| 21–22 Aug | FNN-Sankei | Yoshihide Suga | 32.1 | 61.3 | 6.6 |
| 21–22 Aug | ANN | Yoshihide Suga | 25.8 | 48.7 | 25.5 |
| 14–16 Aug | Kyodo News Archived 2021-08-19 at the Wayback Machine | Yoshihide Suga | 31.8 | 50.6 | 17.6 |
| 14–15 Aug | go2senkyo | Yoshihide Suga | 26.3 | 49.9 | 23.9 |
| 7–9 Aug | Yomiuri-NNN | Yoshihide Suga | 35 | 54 | 10 |
| 7–9 Aug | NHK | Yoshihide Suga | 28.8 | 51.5 | 19.7 |
| 6–9 Aug | Jiji Press Archived 2021-08-14 at the Wayback Machine | Yoshihide Suga | 29.0 | 48.3 | 22.7 |
| 7–8 Aug | Asahi Shimbun | Yoshihide Suga | 28 | 53 | 19 |
| 7–8 Aug | JNN | Yoshihide Suga | 32.6 | 63.4 | 4.0 |
| 23–25 Jul | Nikkei | Yoshihide Suga | 34 | 57 | 9 |
| 17–18 Jul | Kyodo News Archived 2021-08-19 at the Wayback Machine | Yoshihide Suga | 35.9 | 49.8 | 14.3 |
| 17–18 Jul | ANN | Yoshihide Suga | 29.6 | 46.1 | 24.3 |
| 17–18 Jul | Asahi Shimbun | Yoshihide Suga | 31 | 49 | 20 |
| 17–18 Jul | FNN-Sankei | Yoshihide Suga | 39.0 | 55.5 | 5.5 |
| 17 Jul | Mainichi Shimbun | Yoshihide Suga | 30 | 62 | 9 |
| 9–12 Jul | Jiji Press Archived 2021-07-26 at the Wayback Machine | Yoshihide Suga | 29.3 | 49.8 | 20.9 |
| 10–11 Jul | go2senkyo | Yoshihide Suga | 27.9 | 46.6 | 25.4 |
| 9-11 Jul | Yomiuri-NNN | Yoshihide Suga | 37 | 53 | 10 |
| 9-11 Jul | NHK | Yoshihide Suga | 33.3 | 46.0 | 20.8 |
| 3–4 Jul | JNN | Yoshihide Suga | 42.7 | 54.2 | 3.0 |
| 25–27 Jun | Nikkei | Yoshihide Suga | 43 | 50 | 7 |
| 19–20 Jun | Kyodo News Archived 2021-08-19 at the Wayback Machine | Yoshihide Suga | 44.0 | 42.2 | 13.8 |
| 19–20 Jun | ANN | Yoshihide Suga | 32.4 | 42.7 | 24.9 |
| 19–20 Jun | FNN-Sankei | Yoshihide Suga | 43.4 | 51.6 | 5 |
| 19–20 Jun | Asahi Shimbun | Yoshihide Suga | 34 | 42 | 24 |
| 19 Jun | Mainichi Shimbun | Yoshihide Suga | 34 | 55 | 11 |
| 11–14 Jun | Jiji Press Archived 2021-07-11 at the Wayback Machine | Yoshihide Suga | 33.1 | 44.2 | 22.7 |
| 12–13 Jun | go2senkyo | Yoshihide Suga | 28.9 | 45.7 | 25.4 |
| 11–13 Jun | NHK | Yoshihide Suga | 36.7 | 44.8 | 18.5 |
| 5–6 Jun | JNN | Yoshihide Suga | 38.9 | 58.4 | 2.7 |
| 4–6 Jun | Yomiuri-NNN | Yoshihide Suga | 37 | 50 | 13 |
| 28–30 May | Nikkei | Yoshihide Suga | 40 | 50 | 10 |
| 22 May | Mainichi Shimbun | Yoshihide Suga | 31 | 59 | 10 |
| 15–16 May | FNN-Sankei | Yoshihide Suga | 43 | 52.8 | 4.2 |
| 15–16 May | ANN | Yoshihide Suga | 35.6 | 45.9 | 18.5 |
| 15–16 May | Asahi Shimbun | Yoshihide Suga | 33 | 47 | 20 |
| 15–16 May | Kyodo News | Yoshihide Suga | 41.1 | 47.3 | 11.6 |
| 7–10 May | Jiji Press Archived 2021-05-20 at the Wayback Machine | Yoshihide Suga | 32.2 | 44.6 | 23.2 |
| 8–9 May | JNN | Yoshihide Suga | 40 | 57 | 3 |
| 7–9 May | Yomiuri-NNN | Yoshihide Suga | 43 | 46 | 11 |
| 7–9 May | NHK | Yoshihide Suga | 35 | 43 | 22 |
| 23–25 Apr | Nikkei | Yoshihide Suga | 47 | 44 | 9 |
| 18 Apr | Mainichi Shimbun | Yoshihide Suga | 40 | 51 | 9 |
| 17–18 Apr | FNN-Sankei | Yoshihide Suga | 41.9 | 52.3 | 5.8 |
| 17–18 Apr | ANN | Yoshihide Suga | 36.2 | 37.4 | 26.4 |
| 9–12 Apr | Jiji Press Archived 2021-05-20 at the Wayback Machine | Yoshihide Suga | 36.6 | 37.7 | 25.7 |
| 3 Mar – 12 Apr | Asahi Shimbun | Yoshihide Suga | 42 | 48 | 10 |
| 10–11 Apr | Asahi Shimbun | Yoshihide Suga | 40 | 39 | 21 |
| 9-11 Apr | NHK | Yoshihide Suga | 43.9 | 38 | 18.1 |
| 3–4 Apr | JNN | Yoshihide Suga | 44.4 | 52.7 | 3.0 |
| 2–4 Apr | Yomiuri-NNN | Yoshihide Suga | 47 | 40 | 13 |
| 26–28 Mar | Nikkei | Yoshihide Suga | 45 | 46 | 9 |
| 20–21 Mar | Asahi Shimbun | Yoshihide Suga | 40 | 39 | 21 |
| 20–21 Mar | Kyodo News | Yoshihide Suga | 42.1 | 41.5 | 16.4 |
| 20–21 Mar | ANN | Yoshihide Suga | 36.6 | 38.7 | 24.7 |
| 13–14 Mar | FNN-Sankei | Yoshihide Suga | 51.4 | 42.8 | 5.8 |
| 5–8 Mar | Jiji Press Archived 2021-05-20 at the Wayback Machine | Yoshihide Suga | 35 | 41 | 24 |
| 6–7 Mar | JNN | Yoshihide Suga | 42.7 | 53.2 | 4.2 |
| 5–7 Mar | NHK | Yoshihide Suga | 40.3 | 36.5 | 23.2 |
| 5–7 Mar | Yomiuri-NNN | Yoshihide Suga | 48 | 42 | 10 |
| 26–28 Feb | Nikkei | Yoshihide Suga | 44 | 48 | 8 |
| 20–21 Feb | FNN-Sankei | Yoshihide Suga | 51.5 | 43.2 | 5.3 |
| 14 Feb | Mainichi Shimbun | Yoshihide Suga | 38 | 51 | 11 |
| 13–14 Feb | Asahi Shimbun | Yoshihide Suga | 34 | 43 | 23 |
| 13–14 Feb | ANN | Yoshihide Suga | 36.2 | 41 | 22.8 |
| 6–7 Feb | JNN | Yoshihide Suga | 40.8 | 55.9 | 3.3 |
| 5–7 Feb | NHK | Yoshihide Suga | 37.6 | 43.6 | 18.8 |
| 5–7 Feb | Yomiuri-NNN | Yoshihide Suga | 39 | 44 | 17 |
| 4–7 Feb | Jiji Press Archived 2021-05-17 at the Wayback Machine | Yoshihide Suga | 34.8 | 42.8 | 22.4 |
| 29–31 Jan | Nikkei | Yoshihide Suga | 43 | 50 | 7 |
| 23–24 Jan | Asahi Shimbun | Yoshihide Suga | 33 | 45 | 22 |
| 23–24 Jan | FNN-Sankei | Yoshihide Suga | 52.3 | 45 | 2.7 |
| 17 Jan | Mainichi Shimbun | Yoshihide Suga | 33 | 57 | 10 |
| 16–17 Jan | ANN | Yoshihide Suga | 34.8 | 42.5 | 22.7 |
| 15–17 Jan | Yomiuri-NNN | Yoshihide Suga | 39 | 49 | 12 |
| 9-11 Jan | NHK | Yoshihide Suga | 39.5 | 40.7 | 19.8 |
| 8–11 Jan | Jiji Press Archived 2021-02-13 at the Wayback Machine | Yoshihide Suga | 34.2 | 39.7 | 26.1 |
| 9–10 Jan | Kyodo News | Yoshihide Suga | 41.3 | 42.8 | 15.9 |
| 9–10 Jan | JNN | Yoshihide Suga | 41 | 55.9 | 3.1 |

### 2020

| Fieldwork date | Polling firm | Prime Minister | Approve | Disapprove | Und. / no answer |
| 26–27 Dec | Yomiuri-NNN | Yoshihide Suga | 45 | 43 | 12 |
| 25–27 Dec | Nikkei | Yoshihide Suga | 42 | 48 | 10 |
| 19–20 Dec | Asahi Shimbun | Yoshihide Suga | 39 | 35 | 26 |
| 19–20 Dec | ANN | Yoshihide Suga | 38.4 | 39.6 | 22 |
| 13 Dec | Mainichi Shimbun | Yoshihide Suga | 40 | 49 | 11 |
| 11–13 Dec | NHK | Yoshihide Suga | 42.4 | 36 | 21.6 |
| 4–7 Dec | Jiji Press Archived 2021-05-20 at the Wayback Machine | Yoshihide Suga | 43.1 | 26.6 | 30.3 |
| 5–6 Dec | JNN | Yoshihide Suga | 55.2 | 41.1 | 3.7 |
| 5–6 Dec | Kyodo News | Yoshihide Suga | 50.3 | 32.8 | 16.9 |
| 4–6 Dec | Yomiuri-NNN | Yoshihide Suga | 61 | 27 | 12 |
| 27–29 Nov | Nikkei | Yoshihide Suga | 58 | 32 | 10 |
| 15 Oct – 17 Nov | Yomiuri-Waseda | Yoshihide Suga | 66 | 20 | 14 |
| 14–15 Nov | Asahi Shimbun | Yoshihide Suga | 56 | 20 | 24 |
| 14–15 Nov | ANN | Yoshihide Suga | 55.9 | 22.5 | 21.6 |
| 6–9 Nov | Jiji Press Archived 2020-11-18 at the Wayback Machine | Yoshihide Suga | 48.3 | 19.6 | 32.1 |
| 8 Nov | Mainichi Shimbun | Yoshihide Suga | 57 | 36 | 7 |
| 7–8 Nov | JNN | Yoshihide Suga | 66.9 | 28.3 | 4.9 |
| 6–8 Nov | NHK | Yoshihide Suga | 55.6 | 19 | 25.4 |
| 6–8 Nov | Yomiuri-NNN | Yoshihide Suga | 69 | 22 | 9 |
| 23–25 Oct | Nikkei | Yoshihide Suga | 63 | 26 | 11 |
| 17–18 Oct | Asahi Shimbun | Yoshihide Suga | 53 | 22 | 25 |
| 17–18 Oct | ANN | Yoshihide Suga | 56.1 | 19.8 | 24.1 |
| 16–18 Oct | Yomiuri-NNN | Yoshihide Suga | 67 | 21 | 12 |
| 9–12 Oct | Jiji Press Archived 2020-11-03 at the Wayback Machine | Yoshihide Suga | 51.2 | 15.6 | 33.2 |
| 9-11 Oct | NHK | Yoshihide Suga | 55.1 | 19.5 | 25.4 |
| 3–4 Oct | JNN | Yoshihide Suga | 70.7 | 24.2 | 5.1 |
| 21–22 Sep | NHK | Yoshihide Suga | 62.4 | 12.8 | 24.7 |
| 19–20 Sep | Yomiuri-NNN | Yoshihide Suga | 74 | 14 | 12 |
| 19–20 Sep | ANN | Yoshihide Suga | 62.3 | 16.3 | 21.4 |
| 16–17 Sep | Nikkei | Yoshihide Suga | 74 | 17 | 9 |
| 16–17 Sep | Asahi Shimbun | Yoshihide Suga | 65 | 13 | 22 |
| 16 Sep | Yoshihide Suga assumes office as the Prime Minister and President of the LDP.. | Yoshihide Suga assumes office as the Prime Minister and President of the LDP.. | Yoshihide Suga assumes office as the Prime Minister and President of the LDP.. | Yoshihide Suga assumes office as the Prime Minister and President of the LDP.. | Yoshihide Suga assumes office as the Prime Minister and President of the LDP.. |
| 28 Aug | Shinzo Abe announces his intention to resign as Prime Minister and President of the LDP. | Shinzo Abe announces his intention to resign as Prime Minister and President of the LDP. | Shinzo Abe announces his intention to resign as Prime Minister and President of the LDP. | Shinzo Abe announces his intention to resign as Prime Minister and President of the LDP. | Shinzo Abe announces his intention to resign as Prime Minister and President of the LDP. |
| 1–2 Aug | JNN | Shinzo Abe | 35.5 | 62.2 | 2.4 |
| 18–19 Jul | ANN | Shinzo Abe | 34.4 | 48.3 | 17.3 |
| 18–19 Jul | Asahi Shimbun | Shinzo Abe | 33 | 50 | 17 |
| 17–19 Jul | Nikkei & TV Tokyo | Shinzo Abe | 43 | 50 | 7 |
| 17–19 Jul | Kyodo News | Shinzo Abe | 38.8 | 48.5 | 12.7 |
| 18–19 Jul | Mainichi & SSRC | Shinzo Abe | 32 | 60 | 8 |
| 10–13 Jul | Jiji Press Archived 2020-07-18 at the Wayback Machine | Shinzo Abe | 35.1 | 46.2 | 18.7 |
| 11–12 Jul | go2senkyo & JX | Shinzo Abe | 26.3 | 48.2 | 25.5 |
| 4–5 Jul | JNN | Shinzo Abe | 38.2 | 59.8 | 2 |
| 3–5 Jul | Yomiuri Shimbun | Shinzo Abe | 39 | 52 | 9 |
| 11–22 Jun | Jiji Press Archived 2020-07-18 at the Wayback Machine | Shinzo Abe | 40.3 | 59.1 | 0.6 |
| 20–21 Jun | ANN | Shinzo Abe | 33.7 | 49.6 | 16.7 |
| 20–21 Jun | Kyodo News | Shinzo Abe | 36.7 | 49.7 | 13.6 |
| 20–21 Jun | Asahi Shimbun | Shinzo Abe | 31 | 52 | 17 |
| 20–20 Jun | Mainichi & SSRC | Shinzo Abe | 36 | 56 | 8 |
| 13–14 Jun | go2senkyo & JX | Shinzo Abe | 25 | 51.2 | 23.8 |
| 6–7 Jun | JNN | Shinzo Abe | 39.1 | 59.2 | 1.7 |
| 5–7 Jun | Nikkei & TV Tokyo | Shinzo Abe | 38 | 51 | 11 |
| 5–7 Jun | Yomiuri Shimbun | Shinzo Abe | 40 | 50 | 10 |
| 21 May – 1 Jun | Jiji Press Archived 2020-07-04 at the Wayback Machine | Shinzo Abe | 38.1 | 61.3 | 0.6 |
| 29–31 May | Kyodo News | Shinzo Abe | 39.4 | 45.4 | 15.2 |
| 23–24 May | Asahi Shimbun | Shinzo Abe | 29 | 52 | 19 |
| 23–24 May | Mainichi & SSRC | Shinzo Abe | 27 | 64 | 9 |
| 16–17 May | go2senkyo & JX | Shinzo Abe | 24.9 | 48.8 | 26.3 |
| 16–17 May | ANN | Shinzo Abe | 32.8 | 48.5 | 18.7 |
| 9–10 May | JNN | Shinzo Abe | 47.3 | 50.8 | 1.9 |
| 8–10 May | Nikkei & TV Tokyo | Shinzo Abe | 49 | 42 | 9 |
| 8–10 May | Kyodo News | Shinzo Abe | 41.7 | 43 | 15.3 |
| 8–10 May | Yomiuri Shimbun | Shinzo Abe | 42 | 48 | 10 |
| 18–19 Apr | Asahi Shimbun | Shinzo Abe | 41 | 41 | 18 |
| 18–19 Apr | Mainichi Shimbun | Shinzo Abe | 41 | 42 | 17 |
| 10–13 Apr | Kyodo News | Shinzo Abe | 40.4 | 43 | 16.6 |
| 4 Mar – 13 Apr | Asahi Shimbun | Shinzo Abe | 42 | 48 | 10 |
| 11–12 Apr | go2senkyo & JX | Shinzo Abe | 26.9 | 46.5 | 26.6 |
| 11–12 Apr | Yomiuri Shimbun | Shinzo Abe | 42 | 47 | 11 |
| 10–12 Apr | NHK | Shinzo Abe | 39 | 37.9 | 23.1 |
| 8–9 Apr | Mainichi, JNN, & SSRC | Shinzo Abe | 44 | 42 | 14 |
| 4–5 Apr | JNN | Shinzo Abe | 43.3 | 52.7 | 4 |
| 27–29 Mar | Nikkei & TV Tokyo | Shinzo Abe | 48 | 42 | 10 |
| 26–28 Mar | Kyodo News | Shinzo Abe | 45.5 | 38.8 | 15.7 |
| 21–22 Mar | ANN | Shinzo Abe | 39.8 | 38.6 | 21.6 |
| 20–22 Mar | Yomiuri Shimbun | Shinzo Abe | 48 | 40 | 12 |
| 14–16 Mar | Kyodo News | Shinzo Abe | 49.7 | 38.1 | 12.8 |
| 14–15 Mar | Asahi Shimbun | Shinzo Abe | 41 | 38 | 21 |
| 14–15 Mar | Mainichi Shimbun | Shinzo Abe | 43 | 38 | 19 |
| 6–9 Mar | Jiji Press Archived 2020-07-22 at the Wayback Machine | Shinzo Abe | 39.3 | 38.8 | 21.9 |
| 7–8 Mar | JNN | Shinzo Abe | 48.7 | 47.5 | 3.8 |
| 6–8 Mar | NHK | Shinzo Abe | 42.7 | 40.6 | 16.7 |
| 29 Feb – 1 Mar | go2senkyo & JX | Shinzo Abe | 37.4 | 45.1 | 17.5 |
| 29 Feb – 1 Mar | go2senkyo & JX | Shinzo Abe | 42.2 | 47.9 | 9.9 |
| 21–23 Feb | Nikkei & TV Tokyo | Shinzo Abe | 46 | 47 | 7 |
| 15–16 Feb | go2senkyo & JX | Shinzo Abe | 41.2 | 49.1 | 9.7 |
| 15–16 Feb | Asahi Shimbun | Shinzo Abe | 39 | 40 | 21 |
| 15–16 Feb | ANN Archived 2020-02-25 at the Wayback Machine | Shinzo Abe | 39.8 | 42.2 | 18 |
| 15–16 Feb | Kyodo News | Shinzo Abe | 41 | 46.1 | 12.9 |
| 14–15 Feb | Yomiuri Shimbun Archived 2020-02-25 at the Wayback Machine | Shinzo Abe | 47 | 41 | 12 |
| 7–9 Feb | NHK | Shinzo Abe | 44.6 | 37.4 | 18 |
| 6–9 Feb | Jiji Press Archived 2020-02-28 at the Wayback Machine | Shinzo Abe | 38.6 | 39.8 | 21.6 |
| 1–2 Feb | JNN | Shinzo Abe | 49.8 | 46.8 | 3.4 |
| 25–26 Jan | Asahi Shimbun | Shinzo Abe | 38 | 41 | 21 |
| 24–26 Jan | Nikkei & TV Tokyo | Shinzo Abe | 48 | 45 | 7 |
| 18–19 Jan | ANN Archived 2020-02-16 at the Wayback Machine | Shinzo Abe | 45.4 | 35.7 | 18.9 |
| 18–19 Jan | Mainichi Shimbun | Shinzo Abe | 41 | 37 | 22 |
| 17–19 Jan | Yomiuri Shimbun Archived 2020-02-16 at the Wayback Machine | Shinzo Abe | 52 | 37 | 11 |
| 11–13 Jan | NHK | Shinzo Abe | 43.5 | 37.7 | 18.8 |
| 10–13 Jan | Jiji Press | Shinzo Abe | 40.4 | 37 | 22.6 |
| 11–12 Jan | go2senkyo & JX | Shinzo Abe | 43.9 | 43 | 13.1 |
| 11–12 Jan | JNN | Shinzo Abe | 52.1 | 44.8 | 3.1 |
| 11–12 Jan | Kyodo News | Shinzo Abe | 49.3 | 36.7 | 14 |

### 2019

| Fieldwork date | Polling firm | Prime Minister | Approve | Disapprove | Und. / no answer |
| 21–22 Dec | Asahi Shimbun | Shinzo Abe | 38 | 42 | 20 |
| 20–22 Dec | Nikkei & TV Tokyo | Shinzo Abe | 50 | 41 | 9 |
| 14–15 Dec | go2senkyo & JX | Shinzo Abe | 44.03 | 45.12 | 10.86 |
| 14–15 Dec | ANN Archived 2019-12-28 at the Wayback Machine | Shinzo Abe | 40.9 | 40.6 | 18.5 |
| 14–15 Dec | Kyodo News | Shinzo Abe | 42.7 | 43.0 | 14.3 |
| 13–15 Dec | Yomiuri Shimbun Archived 2019-12-28 at the Wayback Machine | Shinzo Abe | 48 | 40 | 12 |
| 6–9 Dec | Jiji Press | Shinzo Abe | 40.6 | 35.3 | 24.1 |
| 9 Oct – 9 Dec | Mainichi & SSRC | Shinzo Abe | 44 | 35 | 19 |
| 7–8 Dec | JNN | Shinzo Abe | 49.1 | 47.7 | 3.1 |
| 6–8 Dec | NHK | Shinzo Abe | 44.5 | 36.6 | 18.9 |
| 30 Nov – 1 Dec | Mainichi Shimbun | Shinzo Abe | 42 | 35 | 21 |
| 23–24 Nov | Kyodo News | Shinzo Abe | 48.7 | 38.1 | 13.2 |
| 22–24 Nov | Nikkei & TV Tokyo | Shinzo Abe | 50 | 40 | 9 |
| 16–17 Nov | Asahi Shimbun | Shinzo Abe | 44 | 36 | 20 |
| 15–17 Nov | Yomiuri Shimbun Archived 2019-11-27 at the Wayback Machine | Shinzo Abe | 49 | 36 | 15 |
| 9–10 Nov | go2senkyo & JX | Shinzo Abe | 42.88 | 33.75 | 23.38 |
| 9–10 Nov | ANN Archived 2019-11-27 at the Wayback Machine | Shinzo Abe | 44.4 | 34.3 | 21.3 |
| 9–10 Nov | JNN | Shinzo Abe | 54.3 | 42.4 | 3.3 |
| 8–10 Nov | Jiji Press | Shinzo Abe | 48.5 | 29.4 | 22.1 |
| 8–10 Nov | NHK | Shinzo Abe | 47.4 | 34.6 | 18.0 |
| 26–27 Oct | Mainichi Shimbun | Shinzo Abe | 48 | 30 | 19 |
| 26–27 Oct | Kyodo News | Shinzo Abe | 54.1 | 34.5 | 11.4 |
| 25–27 Oct | Nikkei & TV Tokyo | Shinzo Abe | 57 | 36 | 8 |
| 19–20 Oct | Asahi Shimbun | Shinzo Abe | 45 | 32 | 23 |
| 19–20 Oct | ANN Archived 2019-10-28 at the Wayback Machine | Shinzo Abe | 45.4 | 33.6 | 21.0 |
| 18–20 Oct | Yomiuri Shimbun Archived 2019-10-28 at the Wayback Machine | Shinzo Abe | 55 | 34 | 11 |
| 11–14 Oct | Jiji Press | Shinzo Abe | 44.2 | 33.0 | 22.8 |
| 5–6 Oct | JNN | Shinzo Abe | 54.9 | 42.4 | 2.7 |
| 5–6 Oct | Kyodo News | Shinzo Abe | 53.0 | 34.2 | 12.8 |
| 14–15 Sep | Asahi Shimbun | Shinzo Abe | 48 | 31 | 21 |
| 14–15 Sep | ANN Archived 2019-10-28 at the Wayback Machine | Shinzo Abe | 52.0 | 27.9 | 20.1 |
| 14–15 Sep | Mainichi Shimbun | Shinzo Abe | 50 | 28 | 21 |
| 13–15 Sep | Yomiuri Shimbun Archived 2020-03-14 at the Wayback Machine | Shinzo Abe | 53 | 35 | 11 |
| 11–12 Sep | Nikkei & TV Tokyo | Shinzo Abe | 59 | 33 | 8 |
| 11–12 Sep | Kyodo News | Shinzo Abe | 55.4 | 25.7 | 18.9 |
| 6–9 Sep | Jiji Press Archived 2020-03-15 at the Wayback Machine | Shinzo Abe | 43.1 | 34.1 | 22.8 |
| 7–8 Sep | JNN | Shinzo Abe | 57.0 | 38.7 | 4.2 |
| 6–8 Sep | NHK | Shinzo Abe | 47.5 | 32.6 | 19.9 |
| 30 Aug – 1 Sep | Nikkei & TV Tokyo | Shinzo Abe | 58 | 33 | 9 |
| 23–25 Aug | Yomiuri Shimbun Archived 2019-09-04 at the Wayback Machine | Shinzo Abe | 58 | 30 | 12 |
| 17–18 Aug | ANN Archived 2019-08-19 at the Wayback Machine | Shinzo Abe | 48.1 | 32.4 | 19.5 |
| 17–18 Aug | Kyodo News | Shinzo Abe | 50.3 | 34.6 | 15.1 |
| 9–12 Aug | Jiji Press | Shinzo Abe | 47.0 | 30.8 | 22.2 |
| 3–4 Aug | JNN | Shinzo Abe | 60.1 | 37.0 | 2.8 |
| 2–4 Aug | NHK | Shinzo Abe | 48.5 | 30.8 | 20.7 |
| 26–28 Jul | Nikkei & TV Tokyo | Shinzo Abe | 52 | 38 | 10 |
| 22–23 Jul | Asahi Shimbun | Shinzo Abe | 42 | 35 | 23 |
| 22–23 Jul | Kyodo News | Shinzo Abe | 48.6 | 38.2 | 13.2 |
| 22–23 Jul | Yomiuri Shimbun Archived 2019-07-25 at the Wayback Machine | Shinzo Abe | 53 | 36 | 11 |
| 21 Jul | House of Councillors election | House of Councillors election | House of Councillors election | House of Councillors election | House of Councillors election |
| 13–15 Jul | NHK | Shinzo Abe | 45 | 33 | 22 |
| 13–14 Jul | Asahi Shimbun | Shinzo Abe | 42 | 34 | 24 |
| 5–8 Jul | Jiji Press Archived 2020-03-16 at the Wayback Machine | Shinzo Abe | 43.1 | 31.0 | 25.9 |
| 6–7 Jul | JNN | Shinzo Abe | 58.7 | 36.9 | 4.4 |
| 5–7 Jul | NHK | Shinzo Abe | 45.4 | 33.2 | 21.5 |
| 4–5 Jul | Yomiuri Shimbun Archived 2019-07-09 at the Wayback Machine | Shinzo Abe | 51 | 33 | 16 |
| 28–30 Jun | NHK | Shinzo Abe | 45 | 31 | 24 |
| 28–30 Jun | Nikkei & TV Tokyo | Shinzo Abe | 56 | 36 | 8 |
| 28–30 Jun | Yomiuri Shimbun Archived 2019-07-09 at the Wayback Machine | Shinzo Abe | 53 | 36 | 10 |
| 26–27 Jun | Kyodo News | Shinzo Abe | 47.6 | 44.1 | 8.3 |
| 22–23 Jun | Asahi Shimbun | Shinzo Abe | 45 | 33 | 22 |
| 21–23 Jun | NHK | Shinzo Abe | 42 | 34 | 24 |
| 15–16 Jun | Kyodo News | Shinzo Abe | 47.6 | 38.1 | 14.3 |
| 15–16 Jun | Mainichi Shimbun | Shinzo Abe | 40 | 37 | 21 |
| 7–10 Jun | Jiji Press | Shinzo Abe | 44.9 | 31.5 | 23.6 |
| 7–9 Jun | NHK | Shinzo Abe | 47.9 | 32.0 | 20.0 |
| 1–2 Jun | JNN | Shinzo Abe | 59.1 | 36.9 | 3.9 |
| 18–19 May | ANN Archived 2019-06-01 at the Wayback Machine | Shinzo Abe | 47.0 | 32.5 | 20.5 |
| 18–19 May | Asahi Shimbun | Shinzo Abe | 45 | 32 | 23 |
| 18–19 May | Kyodo News | Shinzo Abe | 50.5 | 36.2 | 13.3 |
| 18–19 May | Mainichi Shimbun | Shinzo Abe | 43 | 31 | 23 |
| 17–19 May | Yomiuri Shimbun Archived 2020-03-12 at the Wayback Machine | Shinzo Abe | 55 | 32 | 12 |
| 10–13 May | Jiji Press | Shinzo Abe | 44.7 | 31.1 | 24.2 |
| 11–12 May | JNN | Shinzo Abe | 57.4 | 40.3 | 2.4 |
| 10–12 May | Nikkei & TV Tokyo | Shinzo Abe | 55 | 35 | 10 |
| 10–12 May | NHK | Shinzo Abe | 47.6 | 32.3 | 20.1 |
| 1–2 May | Kyodo News | Shinzo Abe | 51.9 | 31.3 | 16.8 |
| 26–28 Apr | Yomiuri Shimbun Archived 2020-03-02 at the Wayback Machine | Shinzo Abe | 54 | 31 | 14 |
| 20–21 Apr | ANN Archived 2019-04-23 at the Wayback Machine | Shinzo Abe | 45.0 | 33.0 | 22.0 |
| 6 Mar – 15 Apr | Asahi Shimbun | Shinzo Abe | 43 | 45 | 12 |
| 13–14 Apr | Asahi Shimbun | Shinzo Abe | 44 | 32 | 24 |
| 13–14 Apr | Mainichi Shimbun | Shinzo Abe | 41 | 37 | 21 |
| 5–8 Apr | Jiji Press Archived 2019-04-12 at the Wayback Machine | Shinzo Abe | 43.0 | 34.3 | 22.7 |
| 6–7 Apr | JNN | Shinzo Abe | 53.4 | 43.4 | 3.2 |
| 5–7 Apr | NHK | Shinzo Abe | 47.4 | 34.6 | 18.1 |
| 1–2 Apr | Kyodo News | Shinzo Abe | 52.8 | 32.4 | 14.8 |
| 1–2 Apr | Yomiuri Shimbun Archived 2019-04-08 at the Wayback Machine | Shinzo Abe | 53 | 32 | 14 |
| 22–24 Mar | Nikkei & TV Tokyo | Shinzo Abe | 48 | 42 | 10 |
| 22–24 Mar | Yomiuri Shimbun Archived 2019-03-26 at the Wayback Machine | Shinzo Abe | 50 | 35 | 15 |
| 16–17 Mar | ANN Archived 2019-03-25 at the Wayback Machine | Shinzo Abe | 43.2 | 36.1 | 20.7 |
| 16–17 Mar | Asahi Shimbun | Shinzo Abe | 41 | 37 | 22 |
| 16–17 Mar | Mainichi Shimbun | Shinzo Abe | 39 | 41 | 19 |
| 8–11 Mar | Jiji Press | Shinzo Abe | 39.0 | 36.4 | 24.6 |
| 9–10 Mar | Kyodo News | Shinzo Abe | 43.3 | 40.9 | 15.8 |
| 8–10 Mar | NHK | Shinzo Abe | 42.0 | 36.0 | 22.0 |
| 2–3 Mar | JNN | Shinzo Abe | 52.3 | 44.3 | 3.4 |
| 23–24 Feb | ANN Archived 2019-03-06 at the Wayback Machine | Shinzo Abe | 41.8 | 36.7 | 21.5 |
| 22–24 Feb | Yomiuri Shimbun Archived 2020-03-13 at the Wayback Machine | Shinzo Abe | 49 | 40 | 11 |
| 16–17 Feb | Asahi Shimbun | Shinzo Abe | 41 | 38 | 21 |
| 15–17 Feb | Nikkei & TV Tokyo | Shinzo Abe | 51 | 42 | 7 |
| 9–11 Feb | NHK | Shinzo Abe | 43.7 | 37.4 | 18.9 |
| 8–11 Feb | Jiji Press Archived 2019-02-16 at the Wayback Machine | Shinzo Abe | 42.4 | 34.5 | 23.1 |
| 2–3 Feb | JNN | Shinzo Abe | 52.8 | 44.3 | 2.9 |
| 2–3 Feb | Kyodo News | Shinzo Abe | 45.6 | 41.1 | 13.3 |
| 2–3 Feb | Mainichi Shimbun | Shinzo Abe | 38 | 39 | 22 |
| 26–27 Jan | ANN Archived 2019-01-28 at the Wayback Machine | Shinzo Abe | 41.0 | 37.9 | 21.1 |
| 25–27 Jan | Nikkei & TV Tokyo | Shinzo Abe | 53 | 37 | 10 |
| 25–27 Jan | Yomiuri Shimbun Archived 2019-01-28 at the Wayback Machine | Shinzo Abe | 49 | 38 | 13 |
| 19–20 Jan | Asahi Shimbun | Shinzo Abe | 43 | 38 | 19 |
| 12–14 Jan | NHK | Shinzo Abe | 42.5 | 35.1 | 22.5 |
| 12–13 Jan | JNN | Shinzo Abe | 50.8 | 45.5 | 3.6 |
| 12–13 Jan | Kyodo News | Shinzo Abe | 43.4 | 42.3 | 14.3 |
| 11–14 Jan | Jiji Press Archived 2019-01-21 at the Wayback Machine | Shinzo Abe | 43.5 | 35.1 | 21.4 |

### 2018

| Fieldwork date | Polling firm | Prime Minister | Approve | Disapprove | Und. / no answer |
| 13 Nov – 25 Dec | Asahi Shimbun | Shinzo Abe | 46 | 46 | 8 |
| 15–16 Dec | ANN Archived 2018-12-18 at the Wayback Machine | Shinzo Abe | 40.0 | 40.6 | 19.4 |
| 15–16 Dec | Asahi Shimbun | Shinzo Abe | 40 | 41 | 19 |
| 15–16 Dec | Kyodo News | Shinzo Abe | 42.4 | 44.1 | 13.5 |
| 15–16 Dec | Mainichi Shimbun | Shinzo Abe | 37 | 40 | 21 |
| 14–16 Dec | Nikkei & TV Tokyo | Shinzo Abe | 47 | 44 | 9 |
| 14–16 Dec | Yomiuri Shimbun | Shinzo Abe | 47 | 43 | 10 |
| 7–10 Dec | Jiji Press Archived 2018-12-18 at the Wayback Machine | Shinzo Abe | 38.9 | 38.7 | 22.4 |
| 17 Oct – 10 Dec | Mainichi & SSRC | Shinzo Abe | 31 | 42 | 24 |
| 8–9 Dec | NHK | Shinzo Abe | 41.3 | 37.8 | 20.9 |
| 1–2 Dec | JNN | Shinzo Abe | 52.8 | 44.3 | 2.9 |
| 24 Oct – 30 Nov | Nikkei | Shinzo Abe | 35 | 33 | 32 |
| 23–25 Nov | Nikkei & TV Tokyo | Shinzo Abe | 51 | 38 | 11 |
| 23–25 Nov | Yomiuri Shimbun | Shinzo Abe | 53 | 36 | 11 |
| 17–18 Nov | ANN Archived 2018-12-03 at the Wayback Machine | Shinzo Abe | 44.3 | 36.4 | 19.3 |
| 17–18 Nov | Asahi Shimbun | Shinzo Abe | 43 | 34 | 23 |
| 17–18 Nov | Mainichi Shimbun | Shinzo Abe | 41 | 38 | 20 |
| 9–12 Nov | Jiji Press Archived 2018-12-09 at the Wayback Machine | Shinzo Abe | 42.3 | 38.2 | 19.5 |
| 9–11 Nov | NHK | Shinzo Abe | 45.6 | 36.8 | 17.6 |
| 3–4 Nov | JNN | Shinzo Abe | 51.0 | 47.0 | 2.0 |
| 3–4 Nov | Kyodo News | Shinzo Abe | 47.3 | 39.5 | 13.2 |
| 26–28 Oct | Nikkei & TV Tokyo | Shinzo Abe | 48 | 42 | 9 |
| 26–28 Oct | Yomiuri Shimbun | Shinzo Abe | 49 | 41 | 10 |
| 20–21 Oct | ANN Archived 2018-12-03 at the Wayback Machine | Shinzo Abe | 39.3 | 40.1 | 20.6 |
| 13–14 Oct | Asahi Shimbun | Shinzo Abe | 40 | 40 | 20 |
| 13–14 Oct | JNN | Shinzo Abe | 51.7 | 45.6 | 2.7 |
| 6–8 Oct | NHK | Shinzo Abe | 42.3 | 39.8 | 17.9 |
| 5–8 Oct | Jiji Press Archived 2018-12-09 at the Wayback Machine | Shinzo Abe | 41.9 | 36.1 | 22 |
| 6–7 Oct | Mainichi Shimbun | Shinzo Abe | 37 | 40 | 20 |
| 2–3 Oct | Kyodo News | Shinzo Abe | 46.5 | 38.2 | 15.3 |
| 2–3 Oct | Nikkei & TV Tokyo | Shinzo Abe | 50 | 42 | 9 |
| 2–3 Oct | Yomiuri Shimbun | Shinzo Abe | 50 | 39 | 10 |
| 21–23 Sep | Nikkei & TV Tokyo | Shinzo Abe | 55 | 39 | 5 |
| 21–23 Sep | Yomiuri Shimbun | Shinzo Abe | 50 | 41 | 9 |
| 20–21 Sep | Kyodo News | Shinzo Abe | 47.4 | 40.0 | 12.6 |
| 15–17 Sep | NHK | Shinzo Abe | 42.1 | 38.7 | 19.2 |
| 15–16 Sep | ANN Archived 2018-09-18 at the Wayback Machine | Shinzo Abe | 39.4 | 38.7 | 21.9 |
| 7–10 Sep | Jiji Press | Shinzo Abe | 41.7 | 36.6 | 21.7 |
| 8–9 Sep | Asahi Shimbun | Shinzo Abe | 41 | 38 | 21 |
| 1–2 Sep | JNN | Shinzo Abe | 46.2 | 52.0 | 1.8 |
| 1–2 Sep | Mainichi Shimbun | Shinzo Abe | 37 | 41 | 20 |
| 25–26 Aug | Kyodo News | Shinzo Abe | 40.3 | 44.3 | 15.4 |
| 24–26 Aug | Nikkei & TV Tokyo | Shinzo Abe | 48 | 42 | 10 |
| 24–26 Aug | Yomiuri Shimbun | Shinzo Abe | 50 | 40 | 10 |
| 18–19 Aug | ANN Archived 2018-08-26 at the Wayback Machine | Shinzo Abe | 38.8 | 44.6 | 16.6 |
| 3–6 Aug | Jiji Press Archived 2018-08-11 at the Wayback Machine | Shinzo Abe | 38.5 | 38.9 | 22.6 |
| 4–5 Aug | Asahi Shimbun | Shinzo Abe | 38 | 41 | 21 |
| 4–5 Aug | JNN | Shinzo Abe | 43.8 | 54.0 | 2.3 |
| 3–5 Aug | NHK | Shinzo Abe | 41.4 | 40.6 | 18.0 |
| 28–29 Jul | Mainchi Shimbun | Shinzo Abe | 37 | 44 | 18 |
| 21–22 Jul | ANN Archived 2018-07-25 at the Wayback Machine | Shinzo Abe | 38.2 | 45.6 | 16.2 |
| 21–22 Jul | Kyodo News | Shinzo Abe | 43.4 | 41.8 | 14.8 |
| 21–22 Jul | Yomiuri Shimbun | Shinzo Abe | 45 | 45 | 10 |
| 20–22 Jul | Nikkei & TV Tokyo | Shinzo Abe | 45 | 47 | 8 |
| 14–15 Jul | Asahi Shimbun | Shinzo Abe | 38 | 43 | 19 |
| 6–9 Jul | Jiji Press Archived 2018-07-13 at the Wayback Machine | Shinzo Abe | 37.0 | 40.9 | 22.1 |
| 7–8 Jul | JNN | Shinzo Abe | 43.1 | 55.8 | 1.3 |
| 6–8 Jul | NHK | Shinzo Abe | 44.1 | 38.8 | 17.1 |
| 23–24 Jun | Mainichi Shimbun | Shinzo Abe | 36 | 40 | 22 |
| 22–24 Jun | Nikkei & TV Tokyo | Shinzo Abe | 52 | 42 | 6 |
| 16–17 Jun | ANN Archived 2018-06-19 at the Wayback Machine | Shinzo Abe | 39.4 | 44.5 | 16.1 |
| 16–17 Jun | Asahi Shimbun | Shinzo Abe | 38 | 45 | 17 |
| 16–17 Jun | Kyodo News | Shinzo Abe | 44.9 | 43.2 | 11.9 |
| 15–17 Jun | NTV Archived 2018-06-17 at the Wayback Machine | Shinzo Abe | 39.4 | 41.9 | 18.7 |
| 15–17 Jun | Yomiuri Shimbun | Shinzo Abe | 45 | 44 | 11 |
| 8–11 Jun | Jiji Press | Shinzo Abe | 35.5 | 43.4 | 21.1 |
| 8–10 Jun | NHK | Shinzo Abe | 37.8 | 43.5 | 18.6 |
| 2–3 Jun | JNN | Shinzo Abe | 39.0 | 59.1 | 2.1 |
| 26–27 May | Mainichi Shimbun | Shinzo Abe | 31 | 48 | 19 |
| 25–27 May | Nikkei & TV Tokyo | Shinzo Abe | 42 | 53 | 5 |
| 19–20 May | ANN Archived 2018-05-23 at the Wayback Machine | Shinzo Abe | 34.1 | 51.1 | 14.8 |
| 19–20 May | Asahi Shimbun | Shinzo Abe | 36 | 44 | 20 |
| 18–20 May | NTV Archived 2018-05-20 at the Wayback Machine | Shinzo Abe | 32.4 | 50.6 | 17.0 |
| 18–20 May | Yomiuri Shimbun | Shinzo Abe | 42 | 47 | 11 |
| 11–14 May | Jiji Press Archived 2018-05-18 at the Wayback Machine | Shinzo Abe | 38.1 | 43.0 | 18.9 |
| 12–13 May | JNN | Shinzo Abe | 40.6 | 57.7 | 1.7 |
| 12–13 May | Kyodo News | Shinzo Abe | 38.9 | 50.3 | 10.8 |
| 11–13 May | NHK | Shinzo Abe | 37.8 | 43.5 | 18.7 |
| 27–29 Apr | Nikkei & TV Tokyo | Shinzo Abe | 43 | 51 | 7 |
| 14 Mar – 25 Apr | Asahi Shimbun | Shinzo Abe | 36 | 56 | 8 |
| 21–22 Apr | ANN Archived 2018-04-25 at the Wayback Machine | Shinzo Abe | 29.0 | 55.2 | 15.8 |
| 21–22 Apr | Mainichi Shimbun | Shinzo Abe | 30 | 49 | 20 |
| 20–22 Apr | Yomiuri Shimbun Archived 2018-04-23 at the Wayback Machine | Shinzo Abe | 39 | 53 | 8 |
| 14–15 Apr | Asahi Shimbun | Shinzo Abe | 31 | 52 | 17 |
| 13–15 Apr | NTV Archived 2018-04-15 at the Wayback Machine | Shinzo Abe | 26.7 | 53.4 | 20.0 |
| 6–9 Apr | Jiji Press Archived 2018-04-13 at the Wayback Machine | Shinzo Abe | 38.4 | 42.6 | 19 |
| 7–8 Apr | JNN | Shinzo Abe | 40.0 | 58.4 | 1.7 |
| 6–8 Apr | NHK | Shinzo Abe | 37.7 | 44.5 | 17.8 |
| 31 Mar – 1 Apr | Kyodo News | Shinzo Abe | 42.4 | 47.5 | 10.1 |
| 31 Mar – 1 Apr | Yomiuri Shimbun | Shinzo Abe | 42 | 50 | 8 |
| 24–25 Mar | ANN Archived 2018-04-01 at the Wayback Machine | Shinzo Abe | 32.6 | 54.9 | 12.5 |
| 23–25 Mar | Nikkei & TV Tokyo | Shinzo Abe | 42 | 49 | 9 |
| 17–18 Mar | Asahi Shimbun | Shinzo Abe | 31 | 48 | 21 |
| 17–18 Mar | Kyodo News | Shinzo Abe | 38.7 | 48.2 | 13.1 |
| 17–18 Mar | Mainichi Shimbun | Shinzo Abe | 33 | 47 | 19 |
| 16–18 Mar | NTV Archived 2018-03-21 at the Wayback Machine | Shinzo Abe | 30.3 | 53.0 | 16.7 |
| 9–12 Mar | Jiji Press Archived 2018-03-17 at the Wayback Machine | Shinzo Abe | 39.3 | 40.4 | 17.6 |
| 9–11 Mar | NHK | Shinzo Abe | 43.8 | 38.1 | 18.1 |
| 9–11 Mar | Yomiuri Shimbun | Shinzo Abe | 48 | 42 | 9 |
| 3–4 Mar | JNN | Shinzo Abe | 49.3 | 48.9 | 1.9 |
| 3–4 Mar | Kyodo News | Shinzo Abe | 48.1 | 39.0 | 12.9 |
| 24–25 Feb | ANN Archived 2018-04-21 at the Wayback Machine | Shinzo Abe | 44.3 | 41.7 | 14.0 |
| 24–25 Feb | Mainichi Shimbun | Shinzo Abe | 45 | 32 | 20 |
| 23–25 Feb | Nikkei | Shinzo Abe | 56 | 36 | 8 |
| 17–18 Feb | Asahi Shimbun | Shinzo Abe | 44 | 37 | 19 |
| 16–18 Feb | NTV Archived 2018-02-20 at the Wayback Machine | Shinzo Abe | 44.0 | 37.3 | 18.7 |
| 10–12 Feb | NHK | Shinzo Abe | 46.4 | 34.3 | 19.3 |
| 9–12 Feb | Jiji Press | Shinzo Abe | 48.7 | 31.9 | 19.4 |
| 10–11 Feb | Kyodo News Archived 2018-02-13 at the Wayback Machine | Shinzo Abe | 50.8 | 36.9 | 12.3 |
| 10–11 Feb | Yomiuri Shimbun | Shinzo Abe | 54 | 36 | 9 |
| 3–4 Feb | JNN | Shinzo Abe | 50.6 | 46.8 | 2.6 |
| 26–28 Jan | Nikkei | Shinzo Abe | 55 | 37 | 8 |
| 26–28 Jan | NTV Archived 2018-01-28 at the Wayback Machine | Shinzo Abe | 36.9 | 43.8 | 19.2 |
| 20–21 Jan | Asahi Shimbun | Shinzo Abe | 45 | 33 | 22 |
| 20–21 Jan | ANN Archived 2018-01-23 at the Wayback Machine | Shinzo Abe | 40.1 | 42.3 | 17.6 |
| 20–21 Jan | Mainichi Shimbun Archived 2018-08-17 at the Wayback Machine | Shinzo Abe | 44 | 38 | 16 |
| 12–15 Jan | Jiji Press Archived 2018-02-02 at the Wayback Machine | Shinzo Abe | 46.6 | 33.6 | 19.8 |
| 13–14 Jan | Kyodo News | Shinzo Abe | 49.7 | 36.6 | 13.7 |
| 13–14 Jan | JNN | Shinzo Abe | 54.6 | 43.9 | 1.5 |
| 12–14 Jan | Yomiuri Shimbun | Shinzo Abe | 54 | 35 | 11 |
| 6–8 Jan | NHK | Shinzo Abe | 45.7 | 37.0 | 17.3 |

### 2017

| Fieldwork date | Polling firm | Prime Minister | Approve | Disapprove | Und. / no answer |
| 16–17 Dec | Asahi Shimbun | Shinzo Abe | 41 | 38 | 21 |
| 15–17 Dec | Nikkei & TV Tokyo | Shinzo Abe | 50 | 40 | 10 |
| 15–17 Dec | NTV Archived 2018-03-27 at the Wayback Machine | Shinzo Abe | 37.8 | 45.3 | 16.9 |
| 8–11 Dec | Jiji Press Archived 2018-04-02 at the Wayback Machine | Shinzo Abe | 42.6 | 36.1 | 21.3 |
| 9–10 Dec | ANN Archived 2018-03-19 at the Wayback Machine | Shinzo Abe | 43.7 | 39.6 | 16.7 |
| 8–10 Dec | NHK | Shinzo Abe | 49 | 35 | 16 |
| 8–10 Dec | Yomiuri Shimbun | Shinzo Abe | 53 | 36 | 11 |
| 18 Oct – 6 Dec | Mainichi & SSRC | Shinzo Abe | 40 | 41 | 18 |
| 2–3 Dec | Kyodo News | Shinzo Abe | 47.2 | 40.4 | 12.4 |
| 2–3 Dec | JNN | Shinzo Abe | 52.7 | 45.7 | 1.6 |
| 24–26 Nov | Nikkei | Shinzo Abe | 52 | 39 | 9 |
| 17–19 Nov | NTV Archived 2017-12-01 at the Wayback Machine | Shinzo Abe | 41.1 | 41.4 | 17.5 |
| 10–13 Nov | Jiji Press Archived 2017-12-01 at the Wayback Machine | Shinzo Abe | 45.4 | 37.1 | 17.5 |
| 11–12 Nov | Mainichi Shimbun Archived 2017-11-19 at the Wayback Machine | Shinzo Abe | 46 | 36 | 15 |
| 11–12 Nov | Asahi Shimbun | Shinzo Abe | 44 | 39 | 17 |
| 11–12 Nov | JNN | Shinzo Abe | 53.1 | 45.8 | 1.1 |
| 10–12 Nov | NHK | Shinzo Abe | 46 | 35 | 19 |
| 4–5 Nov | ANN Archived 2017-11-07 at the Wayback Machine | Shinzo Abe | 44.2 | 41.5 | 14.3 |
| 1–2 Nov | Nikkei & TV Tokyo | Shinzo Abe | 54 | 38 | 7 |
| 1–2 Nov | Yomiuri Shimbun | Shinzo Abe | 52 | 40 | 7 |
| 1–2 Nov | Kyodo News Archived 2017-11-16 at the Wayback Machine | Shinzo Abe | 49.5 | 38.3 | 12.2 |
| 23–24 Oct | Asahi Shimbun | Shinzo Abe | 42 | 39 | 19 |
| 23–24 Oct | Yomiuri Shimbun | Shinzo Abe | 52 | 37 | 10 |